We ________ here on time but we were cau

问题选择题

We ________ here on time but we were caught in a traffic jam.

A．must have arrived

B．could have arrived

C．need have arrived

D．should have arrived

答案

答案：B

B 考察虚拟语气，句义：我们本来能够准时到达，可是我们遇见了交通堵塞了。Could have arrived本来能够到达，却没有到达。符合语境。故B正确。