1£®Would you care to comment__________any troublesome students in your class?

2£®Practising Chinese kungfu can not only build__________one's strength£¬but also develop one's character.

3£®Kitty£¬take your umbrella.It can keep your skin free__________being burnt.

4£®She reduced her weight__________five kilograms last month.

5£®Her poor English often led__________misunderstanding when she first went to England many years ago.

6£®No wonder you are so tired.You__________________(work) all day.

7£®Ted was really__________by the__________problem which also__________other people for a long time.(confuse)