问题补充:
She looks very sad. I want to help her , but I just don’t knowDto do.
A. what B. when C. how D. where
答案:
解析:“疑问词 + 动词不定式”是英语中常用的一种结构。在句中可以作主语、动词或介词的宾语以及表语。
时间:2021-12-19 02:06:37
She looks very sad. I want to help her , but I just don’t knowDto do.
A. what B. when C. how D. where
解析:“疑问词 + 动词不定式”是英语中常用的一种结构。在句中可以作主语、动词或介词的宾语以及表语。