1 . 谁是你家的顶梁柱?
Who is the person ____________________________.?

2 . 突然一则软件程序的广告引起了我的注意。(catch)
All of a sudden,the advertisement for a software program__________.

3 . 这是我曾看过的第一部美国电影。
This is the first American film ___________________________.

4 . 似乎没有人知道在这个城市发生过什么事情。(seem)
__________________________what has happened in the city.

5 . 在中国的春节，人们与家人和朋友通宵玩乐，仿佛不知疲倦。(as if )
At the Spring Festival in China, people have fun wish their families and friends all through the night ___________________________

6 . 当面对艰难的挑战时，我通常认为它是值得一试的。(worth)
When facing a difficult challenge I usually think it is ________________________.

7 . 具备这种专业知识，我就可以设计出保护淡水的最佳方案。（equip… with…）
________________________ , I can design the best plan to protect the fresh water.

8 . 本来她能够通过驾照考试的，但是她太紧张了。(情态动词,pass)
She ________________________, but she was too nervous.

9 . 我突然想起来，我把她的生日给忘了。（hit）
_________________________that I had forgotten her birthday.

10 . 有那位老人带路，我们毫不费力地找到了那间老房子。( with复合结构 )
_______________________, we had no difficulty finding the old house.