6. The        economic changes of the past few years have brought new difficulties threatening the effectiveness of national AIDS control programs.

   A. wealthy   B. novel

   C. obvious   D. fundamental

5. At         11 ：30 p. m.，Pollard finally gave his consent to the search.

   A. genuinely   B. approximately

   C. weightlessly   D. impressively

4. Part of being creative is learning how to protect your freedom. That        freedom from greed.

   A. contains   B. indicates

   C. consists   D. includes

3. In order to make a major breakthrough,the seriously sick scientist decided to        as much time to the rice research as he could but refused to stay in hospital.

   A. decline   B. expand   C. guarantee   D. devote

2. In my opinion,he loves that girl so much that his marrying her is only a        of time.

   A. question   B. problem   C. doubt   D. matter

1. Their products enjoy 30 per cent        of the market in this country because both the quality and their service are fine.

   A. features   B. share   C. discount   D. sales

10. The doctor came back in time without        on the sick man. (delay)

醫(yī)生及時回來了，沒耽誤給病人做手術。

9. We must do our best to develop science and technology,it        in the national economy (part)

我們必須盡全力發(fā)展科技，它對國家的經濟發(fā)展起著重要作用。

8.        I had left my cell phone behind at the bookstore (occur)

我突然想到我把手機落在了書店。

7. The reason lies in        than the others do. (work)

原因在于她工作比別人更努力。