Question

— You ought to have called her yesterday .    — Yes , I know I ____ .

A . ought to    B . ought go have    C . ought have done   D . ought to have called

Answer 1

B

解析:

簡單對話中只重復助動詞、系動詞和情態(tài)動詞。如既有情態(tài)動詞又有系動詞或助動詞，則兩者都重復，不重復行為動詞。