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

简单对话中只重复助动词、系动词和情态动词。如既有情态动词又有系动词或助动词，则两者都重复，不重复行为动词。