5. What I can do        (be) to help you finish the  work. 

4. During the past three years,great changes         (take) place in my hometown.

3 . Some speeches        ( give) in the meeting this   afternoon.   

2. The three astronauts landed on  the earth            (success ) at last.

 1. I feel          ( thank ) when I think of my teachers. They helped me a lot  in the past. 

5. —Do you need some__     _(在..方面帮助）those bags?    

—Thanks. Take the two small ones,please.   

4. When you go camping,please do not            (遗留）any litter.  

3. I often__     _(和......聊天）my pen  pal on the Internet.  

2. We now____(与... 保持联系）him by writing letters. 

1. The meeting came to_     _(结束). No decision was made.