一、 单项选择(每小题1分，共20分)
1 He is _____ honest boy. （ ）
A .a B .an C. // D .the
2. What did he find? He was surprised at what _____. （ ）
A .did he find B .he did find C. he found D. he has found
3. – Do you know the price of the ticket? （ ）
-- Yes. Each _____ 180 yuan.
A .pays B. costs C. takes D. spends
4. A lot of trees _____ around here every year and we can enjoy fresher air now. （ ）
