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- 81She couldn't wait ________ home after such a long and tiring journey.
A.going
B.to go
C.go
D.went
开始考试练习点击查看答案 - 82He forbids his children ____________ sweets because they do harm to their teeth.
A.eating
B.not eating
C.to eat
D.not to eat
开始考试练习点击查看答案 - 83To their surprise, they
found the lecture given by the famous professor easy ______. A.to be understood
B.to understand
C.understanding
D.understood
开始考试练习点击查看答案 - 84The wreckage of something like a jet plain discovered in the heart of the desert is believed ______ a UFO and _______down for reasons still mysterious.
A.to be; have fallen
B.to have been; to have fallen
C.to be; to fall
D.having been; having fallen
开始考试练习点击查看答案 - 85You can go and play games with your friends when you finish your homework. But remember ________ all the lights when you leave.
A.to switch off
B.to switch on
C.switching off
D.switching on
开始考试练习点击查看答案 - 86Many environmentalists think that carbon dioxide is _______ for the global warming, which affects billions and billions of species across the globe.
A.blamed
B.to be blamed
C.to blame
D.blaming
开始考试练习点击查看答案 - 87Four years later,she became the first woman____a degree in agriculture from that famous school.
A.receive
B.receiving
C.received
D.to receive
开始考试练习点击查看答案 - 88Which do you prefer ________ your weekends,playing computer games or watching TV?
A.spending
B.to spend
C.being spent
D.spend
开始考试练习点击查看答案 - 89My job is feeding the cat. Now it's your turn ______ the dog.
A.feeding
B.to feed
C.to have fed
D.being fed
开始考试练习点击查看答案 - 90With a lot of difficult problem __________，the newly-elected president is having a hard time.
A.settled
B.settling
C.tosettle
D.beingsettled
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