问下,是否所有名词都要用冠词修饰?另外,是否只有正点后面才加o'clock?
2个回答

不是

有的固定词组不需要加冠词(have dinner),用副词修饰的名词不需加冠词(There are so many people),特殊用发表特殊意义时不需加冠词(My sister is in hospital.)我姐姐住院了(Reading book in bed is bad for your eyes.)在床上看书对你眼睛不好

只有正点后面才加o'clock,当然也可以省略.