Oh,no!I can't find my mobile phone!
Well,where you last put it?( )
A.haveB.doC.did
David, make trouble at school. ( )
A.can'tB.don'tC.doesn't
He used to arrive late last year,but now he ______.( )
A.hasn'tB.doesn'tC.isn'tD.wasn't.
It's very dangerous to swim in the pool. Look at the sign.
Oh,I ____ notice it. Thanks for telling me.( )
won't
don,t
haven't
didn't