---Thank you very much for showing me how to use the new mobile phone.--- _______
He asked the man outside ________.A. what is he doing.B. for whom he was lookingC. how long he has been waiting
Changsha is _______ than any other city in Hunan Province.A. the busiest B. much busier C. busy
— _______ is the plane taking off?—In twenty minutes.A. How far B. How long C. How soon
—May I try this skirt?— Yes, you _____.A. can B. should C. May
—Help ________ to some fruit, children.—Thank you, Miss Green.A. you B. yourself C. Yourselves