问题
选择题
__ was once regarded as impossible has come true.
A.Who
B.Which
C.That
D.What
答案
答案:D
that是连词,只起连接从句作用,不做句子成分;what是关系代词,相当于something that或anything that,that中不含 what ,但what中有that。
__ was once regarded as impossible has come true.
A.Who
B.Which
C.That
D.What
答案:D
that是连词,只起连接从句作用,不做句子成分;what是关系代词,相当于something that或anything that,that中不含 what ,但what中有that。