You must make sure your mask (口罩) is clean you put it on.( )
A.beforeB.afterC.sinceD.where
Betty, would you like something to eat?
Yes. I'd like some________, please.( )
A.fishB.pearC.waterD.apple
We'll have a new science teacher next month.
________ you sure about that?( )
A.DoB.AreC.WillD.Have
How far is it from here to the subway station?
About________ kilometers.( )
A.oneB.threeC.firstD.third
________ was your school trip?
It was excellent. We went to the Yellow River.( )
A.WhoB.WhatC.HowD.Where
Can we wear our own clothes to the class meeting?
No,you can't.You ______ wear a school uniform.It's our school rule.( )
A.mayB.canC.mustD.need