完成句子 按所给的汉语，用英语完成下列句子。（本大题9分，每小题1.5分）

1.比起其他人来，老板对他的设计更满意。

The boss is _______________________________ his design than ___________________.

2.David以前宁愿回复我的电邮也不愿和我面对面交流。

David _______________________ my e-mails to communicating with me face to face before.

3.事故发生后，她很担心，不断地给她朋友打电话。

After the accident, she was ________________ that she ___________________ to her friends.

4.越来越多的城市禁止人们把宠物带到公共场所去。

People _____________________________________ to public places in more and more cities.

5.只有所有作品都上交了，最终结果才会公布(announce)。

The final result __________________________________ all the works _________________.  

6.当时我除了发短信向朋友求助外别无它选。

I ________________________________________________ my friend for help at that time.

分析环渤海地区内河航运不够发达的自然原因。