Before___ important decisions,__ them___.

问题描述:

Before___ important decisions,__ them___.
A.make think about B.making think over C.makes think of

答案是:B.
“Before”是介词,后面跟动词的ing形式.
“think over”是固定词组,意思是:仔细考虑
整个句子就是一个常用句型.Before doing sth,(You should) do sth.意思是:在做某事之前,你应该先做什么事.后面一句其实把“You should”省略掉了.一般情况下都会省略掉.