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

They have known each other _________they were children.

A. to

B. for

C. while

D. Since

Đáp án
D. Since

Câu hỏi thuộc Bài tập:

E9- Vào 10- Đề ôn 9