Ⅰ.单句填空 用括号内所给词的适当形式填空。
1．I was supposed to arrive at the airport on time.____________ (fortunate)，I was held up by the heavy traffic jam.
答案：unfortunately
2．Therefore，when they become older they are ________________________________________________________________________
(able) to do any other kind of work.
答案：unable
3．Very early the next morning，amazingly，we got completely satisfied in a totally____________ (expect) way.
答案：unexpected
4．I won’t do the purchase because the price of this dress is ____________ (reason)．
答案：unreasonable
5．Job ____________ (apply) need to show their ability to be both organized and flexible in taking on many tasks at the same time.
答案：applicants
6．All facts are the source of ____________ (conclude)．
答案：conclusions
