That is all _______ he has done.A.which B.that C.what D.why

问题描述:

That is all _______ he has done.A.which B.that C.what D.why

B,that is all句子完整,后接定语从句,因为使用all,所以用that我们知道在定语从句中只用that不用which的情况 which疑问句中用that。that开头的句子呢?难道不需要考虑重复的问题吗】