题目内容
【题目】He looks so worried,______
A. What happened to him B. What is happened to him
C. What happened with him D. What is happened with him
【答案】A
【解析】句意:他看起来很忧虑,发生了什么事? happen不能用在被动语态的句子中,首先排除B,D;happen to sb.某人发生了什么事,故答案为A。
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