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

When they _____ the rainbow over the valley, they took dozens of pictures.

A. have seen

B. see

C. saw

D. had seen

Đáp án
C. saw

Câu hỏi thuộc Bài tập:

ENGLISH 9- 26/12/2025