从下面每小题的 A、B、C三个选项中选出可以替换划线部分的最佳选项，并在答题卡上将相应的字母编号涂黑。（共8小题，每小题1分）
I doubt what he said was based on facts.
A. believe           B. think             C. am not sure
Successful people always trust themselves and their ideas.
A. believe in        B. support           C. agree
Going fishing in his free time is a pleasure for my grandfather. He likes doing it very much.
A. happy thing     B. bad thing         C. surprising thing
She is confident of the victory in tomorrow’s competition. Because she has practiced for a long time.
A. problem             B. success           C. Interview
When my mother ironed our clothes yesterday, she hurt her hand.
A. added ... to         B. made ... smooth     C. took ... out
He won the match because he took the advantage of his height.
A. played a joke on     B. made full use of     C. came up with
Please take care of your personal belongings in crowded places.
A. businesses           B. invitations          C. Possessions
I try to be on a diet. And I can’t eat too much meat.
A. lose weight        B. put on weight        C. be on time