51The price of this washing machine has been increased ________ 15％．
A.up
B.to
C.by
D.from
开始考试练习点击查看答案52________ the entrance ________ the cinema, I met a friend of mine．
A.In; to
B.In; of
C.At; of
D.To; of
开始考试练习点击查看答案53It was built in the fifteen century and the paintings date ________ 1520．
A.to
B.back
C.from
D.in
开始考试练习点击查看答案54She fell ill ________ a fever soon after and did not recover．
A.with
B.in
C.by
D.for
开始考试练习点击查看答案55My parents always argue ________ me ________ how I should study．
A.with; about
B.about; with
C.with; with
D.about; about
开始考试练习点击查看答案56He slept well ________ all the windows open．
A.when
B.while
C.with
D.because
开始考试练习点击查看答案57What should you do when your parents argue ________ each other?
A.for
B.at
C.to
D.with
开始考试练习点击查看答案58He will agree to do what you require _________ him．
A.of
B.from
C.to
D.for
开始考试练习点击查看答案59She wanted the man who has an amazing appetite ________ American country music to stay with her ________ lunch time．
A.with; at
B.for; over
C.on; for
D.in; over
开始考试练习点击查看答案60CO 2 differs ________ both physical and chemical qualities ________ CO．
A.from; in
B.in; from
C.from; from
D.in; in
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