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1、have 作助动词构成各种完成时.
→Tom has finished his homework.
→He had left after he had finished the work.
2、have“具有、拥有”
→He has a lot of money.
→He hasn't a lot of money.
→Has he a lot of money?
3、have还可以表示 eat, drink，enjoy，take等意思，
→have dinner/ a meal/ a cup of coffee/a good time/ a
give
give sb. sth.=give sth to sb
give sth. back 归还 give your money back
give up 放弃 never give up
give in 让步；上交 give in homework
give away赠送 give away books to library
