__ you decide to take up,you should try to make it a success.

问题描述:

__ you decide to take up,you should try to make it a success.
A.If B.Whenever
C.Unless D.Whatever
选D为什么?
为什么不能选A

如果选A,
就要说成if you decide to take it up,..才对,
现在缺宾语
那就只能是take up whatever
意思是无论你决定做什么,你应该努力做到成功.