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For the last ten years, engineers _______noise levels in Britain’s cities.

For the last ten years, engineers _______noise levels in Britain’s cities.

Câu hỏi

Nhận biết

For the last ten years, engineers _______noise levels in Britain’s cities.


A.
have been measured
B.
have been measuring
C.
has measured
D.
have been measurement
Đáp án đúng: B

Lời giải của Luyện Tập 365

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