来自钱培德的问题
Heisthemostcarefulboy_D____Iknow.A.whatB.whichC.asD./
Heisthemostcarefulboy_D____Iknow.A.whatB.whichC.asD./


Heisthemostcarefulboy_D____Iknow.A.whatB.whichC.asD./
Heisthemostcarefulboy_D____Iknow.A.whatB.whichC.asD./
Heisthemostcarefulboy_____Iknow.A.whatB.whichC.asD../
选D
这是一句定语从句
先行词【boy】在从句中作宾语,所以填that
有因为作宾语,所以就可以省略不填
所以选D
有不会的可以再问我
为什么不用as?