A. skiing    
B. sking     
C. skying    
D. skies

A. Play
B. Playing
C. Plays

1. My little brother        playing the computer. (喜欢)
2. Are you good at       ? (做风筝)
3. My mother'll       . (带我去医院)
4. The women's        are very nice. (手表)
5. Tom is interested in       . (研究植物)
6. Where's Lily? She's       . Maybe she's ill. (躺在床上)
7.         your pen. You can        it. (寻找, 找到)
8. Thank you for       . (帮助我妹妹)
9. One of the        is in a red dress. (女孩)
10. Dick        today. He can't go to school. (患重感冒)

A. play    
B. play with
C. playing with
D. playing

A. read    
B. reads    
C. writer    
D. writing

      

A. going shopping    
B. go shopping      
C. go shop

A. eating  
B. eat    
C. to eat

A. swim 
B. swimming 
C. are swimming 
D. swim, too