Выберите правильный ответ

Question

Выберите правильный ответ

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Answer 1

12.The problem of homeless people must not be discuss tomorrow. 
13. I think people will be able to solve this problem. 
14.Wheree were they sitting when the taxi arrived?
15.The policeman asked why he hasn't locked the car door.

Answer 2

Правильный ответ здесь будет B