Câu hỏi

The motor vacuum cleaner_______ by Hubert Cecil Booth in 1901.

A. is invented

B. was invented

C. has been invented

D. will be invented

Đáp án
B. was invented

Câu hỏi thuộc Bài tập:

Ms. Dung Purple - REVISION FOR THE SECOND FREQUENT TEST 01 (GRADE 10)