Ⅰ.用所给单词的适当形式填空
1．If he always (tease) others like that, he'll lose some friends.
2．All of them arrived late for (variety) reasons.
3．Her (affect) were centered on her two children.
4．Most of the students (performance) well in the exam.
5．There was an (amuse) look on the President's face.
6．I heard that he was still (mourn) his mother's death.
答案：1. teases 2. various 3. affections 4. performed 5. amused 6. mourning
