——Why is the classroom so dirty?
——Sorry, Sir. It yesterday. We forgot to do it.
A. doesn't clean
B. didn't clean
C. isn't cleaned
D. wasn't cleaned
——Why is the classroom so dirty?——Sorry, Sir. It yesterday. We forgot to do it.A. doesnt
答案:2 悬赏:40 手机版
解决时间 2021-11-28 21:58
- 提问者网友：鼻尖触碰
- 2021-11-28 04:37
最佳答案
- 五星知识达人网友：青尢
- 2019-07-23 20:00
A. doesn't cleanB. didn't cleanC. isn't cleaned(答案→)D. wasn't cleaned解析：本句子考察的是一般过去时的被动态，其结构主语+was/were+动词过去分词，根据中的yesterday，可推知。
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- 1楼网友：底特律间谍
- 2018-12-18 00:50
谢谢解答
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