1. 你最好不要在这里停车。
You'd ______ ______ ______ your car here.
2. 这房间很脏，充满了废纸。
The room was very dirty. It ______ ______ ______ waste paper.
3. 我认为肚子穿过森林是苦难的。
I think it's difficult ______ ______ ______ the forest alone.
4. 电脑是二十一世纪最重要的发明之一。
The computer is ______ ______ ______ ______ ______ inventions in the twentieth century.
5. 为了赶火车，他们一大早就出发了。
They ______ ______ early in the morning to catch the train.

1. 邓亚萍是一位伟大的中国乒乓球运动员。
    Deng Yaping is agreat _____ _____ _____.
2. 李云迪是一个著名的钢琴家。
    Li Yundi is a _____ _____.
3. 你最好别在这里踢球。
    You'd better _____ _____ football here.
4. 安娜太小，还不能上学。
    Ann is _____ young _____ go to school.
5. 当老师走进教室时，学生们立刻停止了谈话。
    When the teacher came into the classroom, the students _____ _____ at once.