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

Would you mind ____________ the door? Thanks

A. opening

B. open

C. opens

D. to open

Đáp án
A. opening

Câu hỏi thuộc Bài tập:

E11- GS- Test for Unit 4