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单项选择题

This is the second time she ______ improvement on that equipment.

A．had made
B．made
C．is making
D．has made

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热门试题

单项选择题It ______ yesterday. The ground is still wet now.

A．must have rained
B．was raining
C．rained
D．had rained

单项选择题The news he told me yesterday seemed ______ ．

A．surprised
B．to surprise
C．surprising
D．surprise