题号:11 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5

题号:11 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5
内容:
I won’t sing____ she sings frist.
选项:
a、without
b、 not until
c、 if not
d、 unless
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题号:12 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5
内容:
Smoking and drinking are regarded as _______ in some countries because they do no good to health.
选项:
a、vices
b、habits
c、customs
d、copies
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题号:13 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5
内容:
He broke his leg on the ice.____,he was absent from work for half a year.
选项:
a、As possible
b、 As follows
c、 As a result
d、 As a whole
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题号:14 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5
内容:
The president of that company was very calm during the political _______.
选项:
a、failure
b、fashion
c、proceed
d、crisis
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题号:15 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5
内容:
____ my opinion your bike is____ times better than mine.
选项:
a、From/ one hundred
b、 In/a hundred
c、To/hundreds
d、 Upon/hundreds of
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题号:16 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5
内容:
On our way to Beijing,we visited Xi’an,a city of two million _______,and stayed there for two days.
选项:
a、insects
b、human
c、inhabitants
d、flights
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题号:17 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5
内容:
Try____ more exercises,and you’ll soon lose____.
选项:
a、to do/weigh
b、 to do/ weight
c、 doing/ weigh
d、 doing/ weight
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题号:18 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5
内容:
If you____ the bird____ from the cage,it will fly away.
选项:
a、sat/free
b、set/ free
c、sat/ freely
d、 set/freedom
题号:19 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5
内容:
He always _______ to everything and never agrees with anybody.
选项:
a、projects
b、gives
c、folds
d、objects
题号:20 题型:单选题（请在以下几个选项中选择唯一正确答案） 本题分数:5
内容:
He has been____ in his company ever ____ 1995.
选项:
a、worked/ after
b、 working/since
c、worked/from
d、 working/for