单项选择题
I remember（） him once when I was staying with my aunt.
A. to see B. seeing C. see D. saw
单项选择题 When should we hand in the homework（）
单项选择题 For a long time after the operation, Linda found（）difficult to fall asleep.
单项选择题 You are（） your money if you buy clothes that you'll probably never wear.
