A. sleep, on  
B. to sleep, on  
C. sleep, in      
D. to sleep, in

A. in
B. for
C. on
D. at

A. in
B. for
C. on
D. at

A. at
B. on
C. in
D. with

1. Those shirts are white.(改为单数形式)
____________________________________
2. His pen is on the desk.(就划线部分提问)
____________________________________
3. Those black pants are five dollars.(就划线部分提问) 
____________________________________
4. My mother likes French fries.(改为否定句)
____________________________________
5. Mrs Smith needs a blue sweater. (改为一般疑问句)
____________________________________
6. I want a yellow sweater.(对划线部分提问)
                                                                        
7. What is the price of your bag? (改为同义句)
                                                                       
8. My sister's skirt is yellow .(划线提问)
                                                                        
9. We sell shoes . The shoes are only ￥35 .( 将两句合并为一个句子)
                                                                        
10. What can I do for you ? ( 改为同义句)
                                                                        

A. for
B. /
C. in
D. about