根据句意选择适当的词(组)的正确形式填空 be greedy for, take notes, have an effect on, drive off, ai
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根据句意选择适当的词（组）的正确形式填空
be greedy for, take notes, have an effect on, drive off, aim at, in vain, lie in, put out, on sale, live on
His trouble ________ his laziness.
试题答案
答案：lies in