根据句意和汉语提示写出所缺单词的正确形式。

小题1:Many students ask for ___________ (建议)about how to improve their English.

小题2:My home town is especially ____________ (闻名)for its university.

小题3:That means we have a better ___________ (机会) of winning.

小题4:A ___________ (旅行) by train is more relaxing than by coach.

小题5:It’s sad to think of pandas and other animals in ____________ (危险).

小题6:The car stopped just in time, but the boy ______________ (跌落) off his bike.

小题7:I was_____________ (试图) to pick up the snake when it bit me again.

小题8:There are ______________ (暴风雨) from time to time in summer and autumn.

小题9:For ____________ （例子)，you must say Mr or Mrs when you meet someone for the first time.

小题10:But he could have ____________ (困难) hearing you  or speaking to you.

做人工胸外心脏挤压时，双手按压病人的胸骨下端，使其下陷大约（）

A.1-2厘米

B.3-4厘米

C.5-6厘米

D.7-8厘米