1.动词与*近的主语一致：
这样的连词有： or, eitheror, neithernor， not onlybut also。
2.or的用法：
(1)作或者讲
例： you or your friend has to go to the teachers office.
(2)作否则讲
例： hurry up, or you will be late for school.
3.and与but：
例： he has no money and he is poor.?
he is poor but he is honest.