I have had a great deal of trouble______(跟上班里其他同学).

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问题 I have had a great deal of trouble______(跟上班里其他同学).

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答案(in)keeping up with the rest of the class

解析 ①have trouble(in)doing sth.为固定用法,意为“做某事有困难”,在这个结构中介词in可以省略,其后用动名词形式;②“跟上”可译为keep up with;③“班里其他同学”可译为the restof the class。
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