I'm not sure when the flight takes off.You ___look up the information on the Internet to make sure

分类: 作业答案 • 2022-01-09 18:04:15

问题描述：

I'm not sure when the flight takes off.You ___look up the information on the Internet to make sure
of it.A.may B.have to C.must D.might 选什么,为什么?

答

A吧
may可以表示可以选择在网上查看信息；
have to(客观必须)/must（主观必须）都是表示必须,确定航班不一定非得上网查看,太绝对了；might是may的过去时,这里不是过去时态的句子.