Ex2. 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

While the street artists were painting murals, tourists _____ around taking photos.

A. have walked

B. walk

C. had walked

D. were walking

Đáp án
D. were walking

Câu hỏi thuộc Bài tập:

ENGLISH 9- 26/12/2025