Rock-climbing is a breathtaking activity, very popular nationwide among young people, cooperation as well as courage plays an important role.
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推荐题目
When deeply absorbed in work, _____ he often was, he would forget all about eating or sleeping.
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that
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which
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where
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I have bought two ball pens, _____ writes well.
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none of them
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neither of them
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none of which
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neither of which
With the help of the collected money, subways can be built sooner and better, _______ brings convenience to citizens.
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I’ll spend my holiday in Qinghai, _____ lies in the north of China.
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which
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where
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that