Question

Помогите, пожалуйста, с английским Choose the correct tense form: 1. Magic lanterns _____ (are used / used / had been used) before zoetrope and praxinoscope appeared. 2. Magic lanterns _____ (have displayed / displayed / will display) sequences of still pictures to demonstrate motion. С объяснением!

Answer 1

Ответ:

Magic lanterns had been used before zoetrope and praxinoscope appeared. - Past Perfect Passive

Так как действие завершилось до определенного момента в прошлом, а именно до появления зоотропа.

Magic lanterns displayed sequences of still pictures to demonstrate motion.

- Past Simple Active

Так как действие произошло далеко в прошлом и не продолжается в настоящем или будущем.

Answer 2

1. Magic lanterns _____ (are used / used / had been used) before zoetrope and praxinoscope appeared.

The correct tense form is "were used."

Explanation: In this sentence, we are talking about a past action that occurred before the appearance of zoetrope and praxinoscope. Therefore, we need to use the past tense. The correct option is "were used," which is the past tense of the verb "to be" (are) and the past participle of the verb "use" (used).

2. Magic lanterns _____ (have displayed / displayed / will display) sequences of still pictures to demonstrate motion.

The correct tense form is "displayed."

Explanation: In this sentence, we are talking about a general fact or a habitual action in the past. Therefore, we need to use the simple past tense. The correct option is "displayed," which is the simple past tense of the verb "display."