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(2018·江苏)Self-driving is an area _______ China and the rest of the world are on
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He expressed his hope ___ he would visit China again the next year, and this was
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Why are some brands more popular than others ______ the products are of similar
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Weather___________, we'll go out for a walk.A.permittedB.permittingC.permitsD.fo
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______ will be in charge of the meeting has not been decided yet.A.WhatB.WhichC.
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Not until they were introduced to each other ______ they had met at a dinner par
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______ these conditions are fulfilled can the application proceed to the next st
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Look,______ beautiful flowers_____ the girl carrying that she becomes the focus
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Every year, butterfly(蝴蝶) lovers in California go out in November to count mo