Question

i didn't tell my parents

--- I didn’t tell my parents the secret yesterday. --- But you ______. A．ought to do B．ought to C．should D．ought to have

Answer 1

D 考查情态动词。句意：昨天我没有告诉我父母这个秘密。但是你本应该告诉他们的。ought to have done 本应该做某事，而实际上没有做，所以选D, ought to 后省略了told your parents。