单项选择，从A、B、C、D中选出最佳的答案。
1）Please don't _______any mistakes.
A. make B. to make
C. makes D. making
2）Her job is cleaning the room _______.
A. never B. every day
C. some times D. usually
3）We might arrive ________the party a little late.
A. of B. on C. in D. at
4）We ______to have a picnic next weekend.
A. went B. going C. are going D. goes
5）________rooms does the house have？
A. How many B. How much
C. How long D. How often