When the teacher came in , the students _______ about the film.
| A．are talking | B．talked |
| C．were talking | D．talk |
There is going to ______ a parents’ meeting this evening. My father will take part in it.
A. have B. has C. be
You’d better _______ too much meat. You are too fat.
A．not eat B．not to eat C．eat
He wasn’t _______ with the knife, and cut himself.
A．careful enough B．enough careful C．enough carefully
Kangkang spent two hours ________ his bedroom last Sunday.
A．clean B．cleaning C．to clean
This case is too heavy. Could you _____ me a favor?
A．to do B．doing C．do