山么叫代词放中间名词放两边?

一般来讲,由动词+副词所构成的短语动词,如代词it/them作它的宾语时,要把it/them放在其中间;由动词+介词所构成的动词短语,如it/them作它宾语时,要将其放在后面.
1.由动词+副词
put down/on/off/in...
take out/up/down/off...
get on/off/down/.
hold back/down...
look up.
2.由动词+介词
look after/over/for...
take on/after.
get over/into...
put nto...比如：动词加介词的举例：“解决问题”：work out the problem.the problem 是名词,放后面；倘若把the problem 用代词it代替,那就要说成work it out.

动词和介词或副词构成的动词词组 接名词时就放后边，接代词就放两者之间。如：give up the project , give it up.