Ⅰ. 单项选择（30分）
( )1. Many people get up early in the morning to exercise so that they can keep fit. （同义替换）
A. health B. healthy
C. healthily D. healthiest
( )2. This apple is not as big as that one. （同义替换）
A. so big as B. bigger than
C. smaller than D. smaller as
( )3. —Where’s Canada?
—It’s _______ the north of North America.
A. in B. on C. at D. to
