1. Is this reason (that) he explained at the meeting for his carelessness in his work?

2. The boy picked up a coin in the road and (the boy) handed it to a policeman.  

3. The actress was born in 1959 and her husband (was born) in 1963.  

4. Once (he was) a worker, Pang Long now becomes a famous singer .  

5. (I) Thank you for your help.

6. (It is a) Pity that I didn’t go to Mary’s birthday party yesterday.  

7. —Are you thirsty? 

—Yes, I am (thirsty).