89. At that time I had no idea ________ I could hand it to him without being seen.

来源：百度知道编辑：UC知道时间：2024/06/01 15:19:40

89. At that time I had no idea ________ I could hand it to him without being seen.
A. if B. how C. which D. that how
为什么选B? D有什么不对？

这个句子直译过来就是：那个时候，我不知道怎样把它给他而不被看见。
how引导的句子作为宾语补足语，进一步来阐述idea，而作为连接词的that在此就没有存在的意义了。
注：一般情况下，从句之前的引导词how，what，which，where等和that互不兼容。当that和它们之间任何一个用在一起来引导从句的时候，就构成了语法上的错误。

状语从句 how做引导词，就不用that了

I ____(write) a letter at that time Just at that time In that place at that time成诗京 I find that staying at the time without you,I don't know what I shuoud do at that time和at the time的区别？ at one time 与 at that time 的区别 at the time=at this time=at that time 对不对？ At that time I thought it __ rain.(A)is going to (B)was going to (C)will at that time 是过去时还是将来时 From that time ___(in,on,at.of)