–AreyougoingtoShanghaibybus?  --Iamnotsure.It’scheap,bu...

問題詳情：

–Are you going to Shanghai by bus?

   --I am not sure. It’s cheap, but uncomfortable. I _____ take a train.

   A. may         B. must             C. can              D. should

【回答】

A

知識點：情態動詞

題型：選擇題