89.---Where is my new football shoes,Mum?I need them to play

89.---Where is my new football shoes,Mum?I need them to play football with my friends.
---I haven’t seen them.You ____ somewhere in your room.
A.ought to put it B.might put it C.ought to have put it D.may have put it
90.---It took me sixteen hours from Xi’an to Ji’nan.
---Sixteen hours!You ____ there.
A.couldn’t fly B.mustn’t fly C.couldn’t have flown D.mustn’t have flown