Circle the letter A, B, C, or D to indicate the correct answer to each of the following questions.

Câu hỏi

When I am at school, my parents are ______________ work.

A. on

B. at

C. in

D. from

Đáp án
B. at

Câu hỏi thuộc Bài tập:

E7- GS- Thi giữa kỳ II- Test 2