Can you tell me __ he wants A.that B.which C.what D.whether

选C.
如果选A,that引导宾语从句,但句子不完整.
如果选B,后面的选项有明确的选择范围,但句后没有,且在which后应有代词才对.
如果选D,意思就搭配不上了.
选C是正确的,what he want 是“想要什么”.
宾语从句,就是在句子中由一个完整的句子充当宾语.
句型：主句 + 连词 + 宾语从句
连接宾语从句的词有：that,if,whether,who,whom,whose,what,which,when,where,how,why,whoever,whenever,wherever 等.例句：
1）He said ( that ) he was the first to see the movie,AVATAR.
2）I wonder if / whether you could lend me your bike.
3）Parents shouldn't give their children whatever they want.
4）I don't know who will come.

C
从句无宾语 what来补齐 其中in which =that
如有疑问 24小时在线

C
tell sb sth，这句话缺宾语，名词性从句中缺宾语应用what

选C，what he wants，译为“他所想要的”