Choose the best option to compelete the following sentences

Câu hỏi

Computers ________ since 1940s.

A. are in used

B. were used to

C. used

D. have been in use

Đáp án
D. have been in use

Câu hỏi thuộc Bài tập:

Ms. Dung Purple - REVISION FOR THE 2ND FREQUENT TEST 02 (GRADE 12)