问题
选择题
Great changes have taken place in that factory. It is no longer _________
it was 20 years ago,_____ it was so poorly equipped.
A.what ,when
B.that ,which
C.what ,which
D.which ,that
答案
答案:A
因为it was 20 years ago中缺少表语,所以第一空应该填what引导表语从句。第二空which引导定语从句,which代替前面整句话的意思,故答案A。