SPEAKING: Mark the letter A, B, C, or D to indicate the sentence that best completes each of the following exchanges.

Câu hỏi

Jane is doing some exercises.
Jane: I want to change the speed on this treadmill but I don't know how. - Trainer: _________

A. Do it right now.

B. Why don't you know?

C. There is nothing to do.

D. You can just press this button. Let me show you.

Đáp án
D. You can just press this button. Let me show you.

Câu hỏi thuộc Bài tập:

Jane is doing some exercises.Jane: I want to change the speed on this treadmill but I don't know how. - Trainer: _________