It’s time_____ school.Lets go to school,Wangwei.A.to B.for C.at
—Do you know ________?—All of them ________ the museum.
Tom has ________ that he lives a happy life.
________ everybody is here, let’s begin our meeting.
---Do you mind my sitting here, Tom? ---___________. It’s for our teacher, Mr Green.
---Don’t be nervous whenever you have a test. --- ____________.