34. ______ (not drop) litter on the ground.

33. What ______ she ______ (say) just now?

32. He is always very careful when he ______ (drive).

31. Mr Wu ______ (bring) sandwiches for everyone tonight.

30. 对我们来说保护环境非常重要。

It's important ______ ______ ______ ______ the environment.

VI. 用括号内所给动词的适当形式填空。 (10分)

29. 在世界其它地方没有熊猫。

There are no pandas in ______ ______ ______ the world.

28. 他们下星期不去野营,因为他们正在为考试学习。

They are not ______ ______next week______they are studying for exams.

27. 明天我们要举行一个晚会,请来参加。

We will have a party tomorrow. Please______ ______.

26. 星期天很多人到这儿作短暂停留。

Many people come here ______ ______ ______ ______ on Sundays.

25. My cousin finishes school next month. (改为否定句)

My cousin ______ ______ school next month.

V. 根据汉语意思完成下列各句, 每空一词。(10分)