I don’t know next.— Let’s ask our teacher for help.

Mike felt sad because he failed his exam yesterday.—I’m sorry to hear that. Let’s ____.

The bus      for about half an hour. Let`s come tomorrow earlier.

对下列句子中加点的词语的解释，不正确的一项是（ ）

It’s_____ that we should have to queue, when we have already got our tickets.