Our teacher said sound___much more slowly than light.
A. was traveling B. travels
C. has traveled D. traveled
Will you please show me the way to the only tall building ___stands near the post office?
A. which B. where C. that D. who
—Look! The boy in the white shirt ___be Tom.
--It ____be him. I saw him enter the library just now.
A. must; can’t B. must; mustn’t
C. may; shouldn’t D. may; mustn’t
Students should do everything they can __their study.
A. improve B. to improve
C. improving D. improved
If you are a little careful, I think you can _____the problem.
A. get over B. get in C. get on D. get off
Joan writes ____than she did 2 years ago.
A. much more careful B. more careful
C. much carefully D. more carefully
