Answer: d test point: the word. Analysis: act as a transitive verb meaning "to play (role)", which means "make" should be an intransitive verb, not directly plays an important language. Acting on/upon it should be.
Answer: D test point: the lack of words. Analysis: act when transitive verb meaning "to play (role)," and here meaning "from work" should be intransitive verb, not directly Garbin language. It should be acting on / upon it.
Answer: D test point: lack of words. Analysis: act is a transitive verb meaning "play (role)", and here is intended to "play", should be a non transitive verb, can not directly add object. On upon / it acting.