—— Who made a phone call to you just now, David?—— I don’t know, but it was a girl’s .
—— What do you think of Mr. Black?.—— He’s very kind and he always others his help.
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