题目内容：

 

1.Luckily, the fire _______ by the time we got there.

2.The haze (雾霾) is over, and we can _______ fresh air freely again.

3.While _______ to run away, she fell off the horse and died.

4.There are 10, 000 Mobikes _______ in our city now.

5.The boss gave us a 20-minute speech. _______, he wanted us to work harder with less pay.

6.Here is the book. First _______ it and then tell me what you think of it.

7.Most slimmers (减肥者) _______ putting weight back on.

8._______, an adult laughs about 15 times a day.

9.The man who _______ the shop was found by the police.

10.According to new scientific research, alarm clocks may _______ radiation (辐射) that is bad for your health.