根据句意及首字母提示填空。

小题1:You can ask a_____ around you for help when you are in trouble.

小题2:The girl will give us a c     in English this afternoon.

小题3:His s____ cheered the girl up. She was very thankful (感谢的).

小题4:She always feels n______ when she speaks in public.

小题5: —Don’t make so much n____. Your father is sleeping.

—Sorry, Mom. I won’t do that again.

环氧乙烷沸点为（）。

A.9.8℃

B.10.8℃

C.15.8℃

D.16.8℃

E.25.8℃