A written B had been written C to be written D was written
答案是A 为什么D不行？详细解释
The first set of textbooks__for teaching English as a foreign language came out in the 16th century
答案:2 悬赏:70 手机版
解决时间 2021-04-20 19:38
- 提问者网友：趣果有间
- 2021-04-20 03:14
最佳答案
- 五星知识达人网友：时间的尘埃
- 2021-04-20 03:31
因为后面有一个谓语动词（came），且没有连词，所以前面一个必须是非谓语动词。
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- 1楼网友：夜余生
- 2021-04-20 04:04
written for teaching English as a foreign language 在句中做textbooks的后置定语。
不选D，用排除法就OK了。textbooks是复数，如何想用D的格式，只能是were written了。
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