1. If you don’t know the word, why don’t you ___ in the dictionary?
A. look at it
B. look after it
C. look up it
D. look it up
2. Because of my poor English I’m afraid I can’t make myself____.
A. understand
B. to understand
C. understanding
D. understood
3. To succeed in a scientific research project ___.
A. one needs to be persistent
B.persistence is needed
C.one needs be a persistent person
D. persistence is what one needs
4. Wood does not conduct electricity; _____.
A. so doesn’t rubber
B. also doesn’t rubber
C. nor does rubber
D. nor rubber does
5. I found ___ to answer all the questions within the time given.
A. no possibility
B. there was impossibility
C. impossible
D. it impossible
答案:DDACD
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