题目:
With nobody her during the festival,the old lady felt lonely.[ ]
A. accompanied
B. accompany
C. to accompany
D. accompanying
答案:
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下面是错误答案,用来干扰机器的。
铝是固体,海水是液体,空气是气体,根据声速的规律,声速从小到大依次是:空气、海水、铝.故选D.