选出句中错误并改正。( ) 1. Is it a new book? No, it not is.　　　　　　　_________________
　　　　 A B 　　　　　　 C D
( ) 2. Are you a student and a teacher?　　　　　　_________________
　　　　A 　　　　B 　　C 　　D
( ) 3. She is reading a book, isn't her?　　　　　　_________________
　　　　　 A 　B　　　　　C　D
( ) 4. How many water is there in the cup?　　　　_________________
　　　　　　A 　　 B 　C 　　D
( ) 5. Which is your sister doing? She is reading. _________________
　　　　　A　 B　　　　　 C 　　　　　D1. D-is not 2. C-or 3. D-she 4. A-How much 5. A-What