题目内容
根据句意用括号中所给动词的适当形式填空。
The child suddenly ________(fall)to the ground when he ________(cross)the street.
答案:fell,was crossing
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题目内容
根据句意用括号中所给动词的适当形式填空。
The child suddenly ________(fall)to the ground when he ________(cross)the street.