New technology __________ to stop the students from cheating in the exam last year.A. used B. is used C. was used
——Yes, it’s said that 80 per cent of fish in this river ________ live long.
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