If I correct someone, I will do it with as much good humor and self-restraint as if
A. to correct
B. correcting
C. having corrected
D. being corrected
A) various B) different C) advanced D) lower
At first, the speaker was referring to the problem of pollution in the country, but
A. committed
B. switched
C. favoured
D. transmitted
A. cancer B. health C. disease D. man