It is normal for students to feel_____ before the examination even though they have prepared well.

----Thank god, you finally returned home _____.----You can never imagine how I worried about you when I was told about the terrible accident.

It is ____ asking Tom for help, for he is always the last to help others.

It is known that ________ medical examination helps people to find out health problems as early as possible.

Owing to over-drinking．his health is ____．