【題目】 As a matter of fact, scientists discovered no ______ of life in the Mars.
A. signal B. mark C. sign D. symbol
智趣寒假作業云南科技出版社系列答案科目：高中英語 來源： 題型：
【題目】Most of us believe that there should be a(n) ______ of mutual(相互的) trust and respect between teachers and students in teaching.
A. direction B. chain
C. passage D. atmosphere
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【題目】New traffic rules that took effect on January l, 2013 are much stricter than ________ in the past．
A. that B. this C. those D. What
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【題目】Nuclear ______ be really dangerous at times even though it’s a nice energy in general．
A．shall B．should C．can D．Must
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【題目】The weather here is great, with temperatures ______ from a low of 55°F to a high of 75 °F in the summer.
A.rangeB.rangedC.to rangD.ranging
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【題目】As you can see, the number of cars on our roads ________ rising these days.
A．was keepingB．keepC．keeps D．were keeping
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【題目】What is the man going to do?
A.Stay inside.B.Look outside.C.Find his umbrella.
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【題目】 the instructions on the packet when you take the drug and the drug, I think, will work soon．
A．Follow B．To follow
C．Following D．Followed
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【題目】Peter was so excited _________he received an invitation from his friend to visit Chongqing.
A. where B. that C. why D. when
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