They are teachers and don't realize___to start and run a company.

问题描述:

They are teachers and don't realize___to start and run a company.
A what it takes B what takes it
C what they take D what takes them

选AThey are teachers and don't realize what it takes to start and run a company.意思是”他们是老师并且还没有意识到创立和经营一家公司究竟需要什么.”it takes sb.some time/some money/sth.to do sth.=做.....