钻孔时，工件固定不动，钻头要同时完成（）运动。
A.两个
B.三个
C.四个
D.五个
参考答案：A
汉儒将文学与学术区别开来，大致把学术称为“（）”，把文学称为“（）”。
句型转换。
1. It's a white box. (改为复数)
_________ white _________.
2. He has a short ruler. (改为一般疑问句)
_________ he _________ a short ruler?
3. His father is fine. (划线部分提问)
_________ _________ his father?
4. Mary has long legs. (同义句)
_________ legs _________ long.
5. They're old buses. (改为单数)
_________ _________ old bus.
