5.Tom is said        ，but we don，t know what country he studied in. (study)

据说Tom在国外学习过，但我不知道他那时在哪个国家学习。

4.1        the paper when I found another mistake and then corrected it carefully. (about)

我正要上交试卷的时候，突然发现了另一处错误并将它仔细更正过来了。

3.                 ，I became excited. (experience)

这是我的第一次经历，我感到很兴奋。

2. Having been kept in the fridge for a long time，the food          ( unpleasant)

在冰箱里放了很长时间后，这食物很难闻。

1.        ，she couldn，t see the words on the blackboard. (break)

她的眼镜破了，因此她看不见黑板上的字了。

(   ) 10. Finally,after five years of hard work,he finished his book,which was written      careful observations and detailed studies.

A. on the ground of    B. on behalf of C. on average of    D. on the basis of

(   ) 9. The local government has spent a large sum of money on the building to make it re- semble the Bird Nest,hoping that it will        the development of local tourism.

A. make for    B. head for    C. allow for    D. run for

(   ) 8.I only intended to be there for a few days，but I        ended up staying for a whole

month.

A. fortunately    B. actually    C. naturally   D. obviously 

(   ) 7. Your idea of travelling on your own in Tibet in the summer vacation is         impossible. You have no experience and also no company.

A. originally    B. finally    C. peacefully    D. absolutely

(   ) 6. Each child is unique and teachers should encourage each one to realize their        .

A. power    B. strength    C. necessity    D. potential