Question

1) Yuri had been working on his computer for two hours before it broke down. 2) I was mopping the floor while my brother was cutting the grass. 3) Were you sleeping when the earthquake started? 4) This time last week, I was flying to Paris. 5) Sam was really happy because he had passed all his exams. 6) Sarah had cleaned the house by the time her barents came back. 7) James had waited for a while and then opened the door to see who was making that strange noise. 8) Marion didn't go shopping because she spent the morning with her little brother that day. Помогите определить время у каждого предложения.

Answer 1

1)Past Perfect Continious(продолжавшийся до определенного момента в прошлом процесс с обозначением периода,есть for...before)
2)Past Continious(два параллельно происходивших действия)
3)Past Continious/Past Simple(Процесс,во время которого произошло действие)
4)Past Continious(процесс в прошедшем времени)
5)Past Simple/Past Perfect(см.6)
6)Past Perfect/Past Simple(действие,произошедшее раньше другого в прошлом)
7)Past Perfect/Past Continious(действие,закончившееся раньше другого в прошлом)
8)Past Simple(на это указывает didn't)

Answer 2

1) Yuri had been working on his computer for two hours before it broke down. - The time mentioned in the sentence is in the past. The action of working on the computer happened before the computer broke down. - The past perfect continuous tense is used to describe an action that started in the past, continued for a period of time, and was still ongoing when another action happened. - In this case, Yuri had been working on his computer for two hours (past perfect continuous) before it broke down (simple past). - The time mentioned in the sentence is not specific, so we cannot determine the exact time when Yuri started working on his computer or when it broke down. 2) I was mopping the floor while my brother was cutting the grass. - The time mentioned in the sentence is in the past. The actions of mopping the floor and cutting the grass happened simultaneously. - The past continuous tense is used to describe ongoing actions that were happening at a specific point in the past. - In this case, I was mopping the floor (past continuous) while my brother was cutting the grass (past continuous). - The time mentioned in the sentence is not specific, so we cannot determine the exact time when these actions took place. 3) Were you sleeping when the earthquake started? - The time mentioned in the sentence is in the past. The action of sleeping happened before the earthquake started. - The past continuous tense is used to describe an ongoing action that was happening at a specific point in the past. - In this case, you were sleeping (past continuous) when the earthquake started (simple past). - The time mentioned in the sentence is not specific, so we cannot determine the exact time when you were sleeping or when the earthquake started. 4) This time last week, I was flying to Paris. - The time mentioned in the sentence is in the past. The action of flying to Paris happened at a specific point in the past. - The past continuous tense is used to describe an ongoing action that was happening at a specific point in the past. - In this case, I was flying to Paris (past continuous) this time last week (specific past time reference). - The specific past time reference is "this time last week," indicating that the action of flying to Paris happened at that time. 5) Sam was really happy because he had passed all his exams. - The time mentioned in the sentence is in the past. The action of passing all the exams happened before Sam felt happy. - The past perfect tense is used to describe an action that happened before another action in the past. - In this case, Sam had passed all his exams (past perfect) and then he felt really happy (simple past). - The time mentioned in the sentence is not specific, so we cannot determine the exact time when Sam passed his exams or when he felt happy. 6) Sarah had cleaned the house by the time her parents came back. - The time mentioned in the sentence is in the past. The action of cleaning the house happened before Sarah's parents came back. - The past perfect tense is used to describe an action that happened before another action in the past. - In this case, Sarah had cleaned the house (past perfect) by the time her parents came back (simple past). - The time mentioned in the sentence is not specific, so we cannot determine the exact time when Sarah cleaned the house or when her parents came back. 7) James had waited for a while and then opened the door to see who was making that strange noise. - The time mentioned in the sentence is in the past. The action of waiting happened before James opened the door. - The past perfect tense is used to describe an action that happened before another action in the past. - In this case, James had waited for a while (past perfect) and then he opened the door (simple past). - The time mentioned in the sentence is not specific, so we cannot determine the exact time when James waited or when he opened the door. 8) Marion didn't go shopping because she spent the morning with her little brother that day. - The time mentioned in the sentence is in the past. The action of spending the morning with her little brother happened before Marion didn't go shopping. - The past simple tense is used to describe a completed action in the past. - In this case, Marion spent the morning with her little brother (past simple) and as a result, she didn't go shopping (negative past simple). - The time mentioned in the sentence is not specific, so we cannot determine the exact time when Marion spent the morning with her little brother or when she didn't go shopping.