He started doing homework 2 hours ago.

A. He has done homework 2 hours ago.

B. He has done homework since 2 hours.

C. He has done homework for 2 hours.

D. He has started doing homework for 2 hours.

Đáp án
C. He has done homework for 2 hours.

Câu hỏi thuộc Bài tập:

Đề luyện thi Tiếng Anh vào 10. Đề 2.(2020-2021)