As time went by , the theory he had stuck ______ correct .
A.to prove | B.to proving | C.to proved | D.to be proved |
The fact that smoking is harmful to health is____most smokers are quite aware of.
A.what | B.which | C.where | D.that |
An example of them is fraud, a crime _______ money is stolen by cheating others.
A.which | B.that | C.what | D.where |
Dr. Frank failed many times but he finally _____ to find a successful way to solve the problem.
A.broke off | B.broke up | C.broke down | D.broke through |
---Where have you been?
---I got caught in traffic, otherwise I _______ here earlier.
A.would be | B.have been | C.had been | D.would have been |
—May I ask a question after class,sir?
—____,but not during my lunch break.
A.Take it easy | B.No way | C.Certainly | D.Go ahead |