Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.

Câu hỏi

When it began to rain, the children_______ in the yard.

A. played

B. were playing

C. have played

D. had played

Đáp án
B. were playing

Câu hỏi thuộc Bài tập:

E9- Vào 10- Đề ôn 20