This city
has undergone
has undergone
（undergo） great changes since 1981.

【答案】has undergone

【解答】

【點評】

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發(fā)布：2024/12/20 20:0:2組卷：17引用：1難度：0.7

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A．take	B．a(chǎn)m about to
C．will be taking	D．have taken

A．will be increasing	B．has increased
C．were increasing	D．have increased

A．were made	B．have made
C．a(chǎn)re made	D．have been made

This city has undergonehas undergone（undergo） great changes since 1981.