___ be late again.
　　A. You　 　　B. Not　 　　C. Won’t　 　　D. Don’t
　

D　祈使句否定式在句首加don’t　

________ be late for class!上课不要迟到。

1. A.
   Not
2. B.
   Don't
3. C.
   No
4. D.
   Never

________ be late for class!

1. A.
   Not
2. B.
   Don't
3. C.
   Isn't
4. D.
   Aren't