1 . Students should be prevented from ________(take) their cellphones to the campus. （所给词的适当形式填空）

2 . Zhang Guimei has made great ________(contribute) to the cause of education. （所给词的适当形式填空）

3 . The temperature will be likely ________ (drop) tomorrow, so remember to put on more clothes. （所给词的适当形式填空）

4 . Scientists are still searching ________ a cure for the common disease. （用适当的词填空）

5 . It is eating too much junk food ________ makes him overweight. （用适当的词填空）

6 . For Chinese people, there are a ________(various) of activities to celebrate the traditional festivals. （所给词的适当形式填空）

7 . Students are advised to keep the list of books near the desk for easy ________(refer). （所给词的适当形式填空）

8 . The temple ________(date) back to 800 years ago is under repair and will be open next month. （所给词的适当形式填空）

9 . I was taking shelter in the rain ________ something unusual caught my attention. （用适当的词填空）

10 . We said thanks to Mr. Wu, without ________we could’ t achieve our goals. （用适当的词填空）