一．单项选择.(15分)
( )1. — Why did you get up late this morning?
— _________I stayed up late last night, v
A. Because B. So C. Because of D. But
( ) 2. — What did you see?
— I saw many boys________ games near the river.
A. played B. playing C. plays D. to play
( )3. You can find ___ easy to learn English.
A. that B. this C. it D. how
