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- 51They have not made any decision on________ they are going to do to deal with waste and pollution.
A.that
B.which
C.if
D.what
开始考试练习点击查看答案 - 52These paintings look very beautiful.I wonder________.
A.how much cost they are
B.how much do they cost
C.how much they cost
D.how much are they cost
开始考试练习点击查看答案 - 53Michael left word with my assistant________he would call me again later.
A.who
B.that
C.whether
D.which
开始考试练习点击查看答案 - 54________team wins on Sunday will get the present.
A.No matter what
B.No matter which
C.Whatever
D.Whichever
开始考试练习点击查看答案 - 55She asked me________I had returned the books to the library, and I told her that I hadn’t.
A.when
B.where
C.whether
D.what
开始考试练习点击查看答案 - 56The most pleasant thing of the rainy season is________we can freely enjoy the fresh air after it rains.
A.what
B.that
C.whether
D.why
开始考试练习点击查看答案 - 57Could you tell me________to fly from Chicago to New York?
A.it costs how much
B.how much does it cost
C.how much costs it
D.how much it costs
开始考试练习点击查看答案 - 58________is that I can’t understand what she is talking about.
A.What I find difficult
B.What I find it difficult
C.How difficult I find
D.How difficult I find it
开始考试练习点击查看答案 - 59________whether robots will one day have vision as good as human vision.
A.What is not yet known
B.It is not yet known
C.As is not yet known
D.This is not yet known
开始考试练习点击查看答案 - 60In some countries,________is called “equality” does not really mean equal rights for all people.
A.which
B.that
C.what
D.this
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