Ⅰ.单词拼写
1．At last，his hard working earned him a lot after he________(退休)．
2．Last night，the earthquake________(袭击) the place，making much damage.
3．He learned English only by all kinds of________(媒体)．
4．At that moment，I couldn't say anything________(由于)to my sadness.
5．They were asked to________(管理)the traffic.
6．I'm sorry to have________(麻烦) you with so many questions on such an occasion.
7．Who do you think is the right person to________(承担)the task?
8．The scientists are struggling for a________(突破)in cancer research.
答案：1.retired 2.struck 3.media 4.owing 5.regulate
6．bothered 7.undertake 8.breakthrough
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5．practical 6.valid 7.association 8.seizing
9．convenience 10.distinguished
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9．gradually 10.is recognized
