温馨提示：
此套题为Word版，请按住Ctrl,滑动鼠标滚轴，调节合适的观看比例，答案解析附后。
课时达标·训练
Ⅰ. 用删除线“— ”标出下列句中可以省略的部分
1. Some of us study Japanese, others study English.
2. He is very good at dancing, though he is very old.
3. When he was still a boy of 10, he had to work day and night.
4. Mary wanted to use your new bike, but I asked her not to use your new bike.
5. We’ll go to the doctor’s clinic in a minute.
6. The work having been done, he left the office.
7. If it is necessary, put a comma.
