1．An additional (addition) charge is made for heavy bags.
2．The name of the task is associated (associate) with the event.
3．It is supposed that he is working in that big company.
4．I wonder how I can bring their debate to an end.
5．Please help me out with this problem.
6．Mountain climbing must be very tiring. In addition, you might feel sick with the air getting thinner.
7．The preserved (preserve) bodies are known to the world as mummies.
8．He is very sensitive (sense) to his ugly appearance.
9．We occasionally (occasion) meet for a drink after work.
10．These old pictures bring to their mind the college days that/which ， when life was hard but happy. they spent together
