1、clothes, cloth, clothing
clothes统指各种衣服，谓语动词永远是复数， cloth指布，为不可数名词， clothing 服装的总称，指一件衣服用a piece of, an article of
2、incident, accident
incident指小事件, accident指不幸的事故He was killed in the accident.
3、amount, number
amount后接不可数名词， number后接可数名词 a number of students
4. a number of, the number of
a number of许多，谓语动词用复数。the number of…的数目，谓语动词用单数。The number of students is increasing.
5. in front of, in the front of
in front of范围外的前面，in the front of范围内的前面 In the front of the room sits a boy.
6. of the day, of a day
of the day每一天的，当时的，当代的， of a day暂时的，不长久的 a famous scientist of the day
7. who, what
who指姓名或关系，what指职业或地位 What is your dad? He is a teacher.
8. what, which
what的选择基础是无限制的，which在一定范围内进行选择
Which do you prefer, bananas or apples?
9. other, another
other后接名词复数，another后接名词单数 other students, another student
10. able, capable
able与不定式to do连用，capable与of连用 He is capable of doing…
11. almost, nearly
二者均为"几乎,差不多" 和否定词连用用almost almost nobody
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