单项选择题
A．troubled B．trouble C．difficult D．easy
A．about B．from C．for D．between
A. How did you like it B. I heard you took a trip to Mexico. C. Maybe by then it’ll be too late. D. Perhaps you should buy a new one. E. You know what you can do F. That’s funny. G. You can take it. H. Can you do me a favor