Question

17. Mother ... dinner by 2 o`clock yesterday. a. had cooked b. cooks c. will cooked d. cooking

Answer 1

Прошедшее время, а).
17. Mother had cooked dinner by 2 0'clock yesterday.

Answer 2

Mother had cooked dinner by 2 o'clock yesterday

Answer 3

The correct answer is "a. had cooked."

This is because the sentence is in the past perfect tense, which is used to describe an action that happened before another action in the past. In this case, the action of cooking dinner happened before 2 o'clock yesterday.

The past perfect tense is formed by using the auxiliary verb "had" followed by the past participle of the main verb. In this case, the main verb is "cook," and its past participle form is "cooked."

Therefore, the correct sentence is: "Mother had cooked dinner by 2 o'clock yesterday."