The new regulation will be _______ from the first of April.
A. forced
B. abused
C. enforced
D. enfolded
昨天习题与答案
He lifted the heavy weight, but it was the greatest ______ he had ever made.
A. strength
B. force
C. effort
D. energy
本题答案:选择C).题目大意为：他举起了这个重量，不过那是他出过的最大的力了。C) make effort ; A)exert one’s strength; B)summon up/use one’s energy.