—Why don’t you use your own knife?—Sorry, I’ve _____ it at home.
Jim is one of the boys ______ from England.
In our school there ______ a number of books on science and the number of them ______ growing larger and larger.
______ there’s going to ______ a basketball match tomorrow,______ I won’t go to watch it because I’m very busy.
I’m not sure if he ______ in this exam. But if he ______ harder, he will do better.
-The lights in the classroom are still on. -Sorry. I’ll go and ______.