1. By 5 :30  yesterday afternoon he         (finish) writing the laboratory report.

2. As soon as he came into the office, he        (shake) hands with every one of us.

 3. You must try your best to stop him         (make) the same mistake again.  

4. The law of gravity        (discover) by Isaac Newton about 350 years ago.  

5. If the wild animals can't find enough food,  they        (die)or have to leave their habitat soon.

6. The Great Wall as well as the Palace Museum        (attract)lots of tourists from abroad every year.

 7. The dictionary is very        (help) to me.

8. Who is         (popular) teacher in your school?

9. I will go to the park if it        (not rain)tomorrow.

10. She spent half an hour        (do) the work yester day.

高某是居住在国外的中国公民，2005年因继承问题与其弟弟引发诉讼，高某由于工作原因无法亲自出庭，于是委托了律师郑某作为诉讼代理人参加诉讼，则关于其授权委托书必须经过的程序，下列哪项说法是错误的( )

A．由中国驻该国大使馆证明
B．由该国驻中国大使馆证明
C．若其居住国没有和中国建立外交关系，则可以由当地的爱国华侨团体证明
D．若其居住国没有和中国建立外交关系，可以由与中华人民共和国有外交关系的第三国驻该国的使领馆证明，再转由中华人民共和国驻该第三国使领馆证明