Question

—Has Ham started out? He said he would join in the party.
—He ____. He is a man who always keeps his word.

A．must have left

B．need have left

C．should have left

D．could have left

Answer 1

A

考查情態(tài)動(dòng)詞+have done，A是過(guò)去一定做了，B是過(guò)去本有必要做卻沒(méi)做，C是過(guò)去本應(yīng)該做卻沒(méi)做，D是過(guò)去本可以做卻沒(méi)做，句意是：--Ham出發(fā)了嗎？--他說(shuō)他會(huì)參加聚會(huì)的。--他一定已經(jīng)走了，因?yàn)樗�是守信的人。選A。