15000 bài tập tách từ đề thi thử môn Tiếng Anh có đáp án (Phần 1)

An increased number of city dwellers has made the obsolete infrastructure worse and required a lot of repairs in these days. A. has made B. obsolete infrastructure C. required D. repairs

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An increased number of city dwellers has made the obsolete infrastructure worse and required a lot of repairs in these days.

has made

obsolete infrastructure

required

repairs

Giải thích

Đáp án A

- A number of + N số nhiều + V chia số nhiều

ð Đáp án A (has made => have made)