I ____ him the answer ____ possble.,but I was so busy then.A.coul_英语解答

I ____ him the answer ____ possble.,but I was so busy then.
A.could tell,if it had been
B.must have told,were it
C.should have told,had it been
D.should have told,should it be

人气：439 ℃　时间：2020-06-07 00:26:52

解答

C：should have done表示本应该做某事（而没做）had it been应该是if it had been, 但是前面用的是虚拟语气,这个后面的句子应该用倒装句,所以改为had it been.也表示虚拟.这句话翻译为：如果当时可能的话,我本应该...