—I want to go to the library but I am afraid I am not in the right . — _____. Go ahead.
18.--- Tom has a lot of parties recently. ---Yes, that may ____ why he didn’t do well in the test. A, sum up B. add up to C. account for D. make sense of
17.I’m ____a diet, since I put ____ weight easily.
16.He is heavily ____ now, so he can’t pay for a new house.
15.---Tom is never late for work. Why is he absent today? ---Something ________ to him.
14.It is not who is right but what is right _______ is important.