At the age of nine, he ____ play basketball at all. But now he ____ do it well.
| A．couldn't; can | B．can; couldn't |
| C．can’t; can | D．could; can’t |
——Yes, it’s said that 80 per cent of fish in this river ________ live long.
| A．doesn’t | B．don’t | C．isn’t | D．aren’t |
If you are free to walk through out city, please ________ us.
A drop in B drop in at C. drop in on
There are many trees on _______ side of the road and _______ sides of the river.
A. both, both B. either, either C. either, both
I _______ talk with my good friends _______ watch TV
A like, better B. prefer, to C. would rather, than
Books are made _____paper and paper is made _____ wood and bamboo
A. from, from B. of, of C. of, from