They .when the fire alarm rang.A.cook B.cooked C.was cooking D.were cooking
请帮我选正确答案以及原因
人气：390 ℃ 时间：2019-11-05 19:19:55
解答
D.were cooking原因呢？正在煮饭的时候, ; They 是复数,用were,; rang 是ring 的过去式所以选过去进行式: They were cooking when the fire alarm rang.
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