题目内容：

根据汉语或首字母提示填空

1.Today, scholars have done large a______ of instructive research about restaurants.

2.She a______that she had made a big mistake.

3.It doesn’t s______you to have your hair cut short.

4.The street near my home is full of heavy traffic, because the ______（十字路口）is designed not so reasonably.

5.Only six percent of police time is o______with criminal cases.

6.______（不知怎么地），the right chance never seems to present itself.

7.According to these ______（数字）, the scientists have done thorough research on the issue.

8.In order to improve relations between the two cities, a new railroad is under ______（建设）.

9.He has always been very keen on doing p______ exercise.

10.It takes three hours, ______（无论哪个）route you take.