28.                  to the conference surprised us,since he was an important figure in this field after all. (invite)

他沒有被邀請參加會議很讓我們吃驚，畢竟他是這一行業(yè)的重要人物。

27. Advertisements have become part of our everyday life，so it is important that we educate ourselves about them                by them. ( avoid)

廣告已經(jīng)成為我們日常生活的一部分，所以我們要加強自我教育，以免被愚弄。

26. Back home from his holiday,the president got a pile of documents              . ( sign)

度假回來，總統(tǒng)有一堆文件要簽名。

25. Every year one million tourists visit Stonehenge, which is believed           before the Pyramids, about 4,000 years ago. (construct)

每年大約有一百萬游客參觀巨石陣，據(jù)說它是在四千年以前被修建，早于埃及的金字塔。

24. The boss of the private business is so cruel that he                twelve hours a day. (have)

這家私營企業(yè)的老板真狠心，竟讓他的員工一天工作十二小時。

23. To give way to the technical reform,the technician had to give up the item he had devoted himself        . (work)

為了讓位于技術改革，這位技術員不得不放棄他過去幾個月一直在從事的項目。

22. Not taking his failures lying down,the young scientist decided to try                       in a different way. (carry )

不甘心數(shù)次失敗，這位年輕科學家決定嘗試一種不同的方法去做實驗。

21. When she heard her mother' s steps on the stairs，she pretended             her composition. (write)

聽到媽媽上樓梯的腳步聲，她假裝在寫作文。

20. Generally speaking，                means to get a higher position in this company. (hard)

一般來說，在這個公司，努力工作就意味著能獲得一個更高的職位。

19.                  ，you will have to make a great effort to give it up. (addict)

一旦吸煙成癮，你將不得不非常努力才能戒掉。