難度：★★★★ 考點：時態語態
21．Look！ The children ____ k ites over there.
A．flew
B．fly
C．are flying
22．She says that she ____ to Beijing next week.
A．has gone
B．will go
C．goes
23．--Tom ____ out.
----Oh, has he? What time ____ he ____ out?
A．is； did； go
B．went； is； going
C．has gone； did； go
D．is going； does； go
24．--"Where's Li Lei？ "
----"He ____ his sports shoes in the room. He ____ football with his friends. "
A．is putting on； is playing
B．puts on； will play
C．is putting on； will play
D．put on； played
25．Lucy and Lily can speak good Chinese， because they ____ China for six years.
A．have been in
B．have been to
C．have come to
D．have gone to
26．The two old men ____ each other since 1970.
A．didn't see
B．don't see
C．haven't seen
D．won't see
27．This kind of machine ____ cutting paper.
A．uses for
B．is using for
C．is used to
D．is used for
28．Three quarters of the world's books and newspapers ____ in English.
A．are writing
B．is written
C．is writing
D．are written
29．This kind of flower ____ every day.
A．must water
B．must be watered
C．water
D．will water
30．That house ____ in 1990. We have lived there for nearly ten years.
A．built
B．builds
C．is built
D．was built
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