—Is there _______ chicken in the hamburgers?— No, there isn’t _______.
Can you tell me_____________?
---______ to give the letter to Mr. Wang. It’s very important.---No, I won’t.
They have to ______leaving for London because of the bad weather.
---How long did you spend going through the jungle during the exciting vacation?---Going through the jungle _____us about three weeks.
---Listen! Someone is knocking at the door. Who _____it be?---It _____be Tom. He phoned to visit me this evening.