Ⅰ.单句语法填空
1．I want to use the same tools ________ were used in your factory a few days ago.
2．Having practised for years，he ________ (success)in winning the gold medal at last.
3．When I lose heart，it is my mother that helps me regain________ (confident)and gives me support.
4．He occupies an important position in the government office，and his ________ (occupy)brings him great fame.
5．These young trees will require________ (look) after carefully.
