限时训练
九Unit2 Topic1 Section B（40分钟）
一. 单项选择。
（ ）1.—How long have you been like this?
— .
A.Yesterday before. B.Yesterday C.Before yesterday D.Since yesterday.
（ ）2.—Could you tell me ?
—About three hours.
A.how long it takes to fly to Hong Kong
B.how long it took to fly to Hong Kong
C.how long does it take to fly to Hong Kong
D.how long did it take to fly to Hong Kong
