they will be thankful for ( )you have done A what B that C which D 选什么 为什么

问题描述:

they will be thankful for ( )you have done A what B that C which D 选什么 为什么
they will be thankful for ( )you have done
A what B that C which D
选什么 为什么
为什么不选that呢 为什么人们总是说 不选that 是因为that 在宾语从句中不做任何成分 可是有些宾语从句中也会出现that 而且that 也会充当一定的成分 这是为什么呢

选择AThey will be thankful for 【what 】you have done.他们会感激你所做的.what~在句中引导介词for的宾语从句.而what在宾语从句部分中作宾语,you have done what.根据句意“你做的什么”,就是what you have done....