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

Câu hỏi

Most people talk too much and don’t realize how important_______is.

A. to be listening

B. to be listened

C. have listened

D. listening

Đáp án
D. listening

Câu hỏi thuộc Bài tập:

E11- GS- Unit 4- Practice 6