____ is to be done is ______ to carry it out smoothly since the decision has be

题型：不详难度：来源：

____ is to be done is ______ to carry it out smoothly since the decision has been made．

A．What; how

B．Where; how

C．When; what

D．Where; what

答案

A

解析

试题分析：考查从句，从句is to be done缺少宾语，所以选What，句子to carry it out smoothly不缺少成份，所以选how，句子意思“自从下定决心将要做什么是怎样顺利执行”，所以选A
点评：做从句题时，首先看从句是否缺少成份，如果缺少成份就选择关系代词，关系代词不仅起引导作用而且做成份；如果不缺少成份，就选择关系副词，关系副词不做成份，只起引导作用。