For your homework, I want you to remember the names of all the planets in ___correct order.
A. our B. your
C. itsD. their
_______ you use your dictionary often, your spelling will improve.
A. Whether B. If
C. Though D. While
—It's hot today. Why not go for a swim?
—________. Let's go.
A. Good idea B. That's right
C. Not at all D. Well done
The office phones are dirty and they _______ next week
A. will clean B. will be cleaned
C. are cleaningD. are cleaned
I'm not hungry because I have _______ had lunch.
A. ever B. never
C. just D. still
You ____ touch an electric fire. It's dangerous.
A. need B. must
C. needn't D. mustn't
