—Our school is so big. We must clean it up as soon as possible.—Don’t worry. ________.
---Can you think of any_______tips to protect yourselves against crime? ---I have no idea.
Nobody has the right to laugh at others _________ he is right.
Look, there is “u” and “s” in the word university .
–Kangkang told me he would have a party this evening. Are you going there? --I’m invited, too. But I have a lot of homework to do this evening, and I wonder _____.
We'll go on a field trip if it _______ this weekend.