---I want to know if I can smoke here?---No, you _________. Could you see the sign “NO SMOKING” there?
----Shall we go out for a picnic tomorrow? ---- ____________.
I’m so excited. I can’t __________ visit the Summer Palace.
Yesterday, Uncle Green arrived _____ Paris.
Some people are walking _______ the bridge and some boats are going _______ the bridge.
_______ beef do we need to buy?