Question

— Are you going to Beijing by air?
— It’s fast, but expensive. So I’m not sure. I _____ take a train.

A．may

B．will

C．must

D．should

Answer 1

A

考查情态动词用法。may表示一种可能性比较小的推测，will 将，must是肯定性的推测，should应该，根据题中So I’m not sure，可知是一种不太肯定的推测，所以选A。