1. They _______ (chat) online when Amy came up the stairs.
2. When I got home, I found my pet dog _______ (lie) on the floor, dead.
3. —I'm sorry I forgot _______ (post) your letter on my way home. 
    —That's OK. I will do it myself this afternoon.
4. She tells her son to have his hair _______ (cut) every other month.
5. Yesterday, she ________ (make) to finish all the work in a short time by his boss.

1. He __________(not do) his homework on Sunday morning.              
2. Yesterday I __________(visit) an old friend of mine.                  
3. His mother wants her little child __________(drink) milk every day.  
4. Tina didn't come only because of her __________(ill).              
5. Having a balanced diet is a matter of great __________(important)．
6. France is a good place __________(go) sightseeing.                  
7. Mr Wang is __________(leave) for New York tomorrow.                  
8. He just finished __________(write)a letter to his friend.          
9. -I'm sorry I forgot __________(post) your letter on my way home.  
    -That's OK.I will do it myself this afternoon.                  
10.I'm thinking about __________(go) to the north for my holiday.