2019年mpacc考试英语真题——连词307

{01}______ he wants to say is ______ great an effort he has made to help her out.

A.That; how

B.What; what

C.What; how

D.What; that

解析：
试题分析：考查名词性从句的连接词。第一空what he wants to say是一个主语从句，what引导起这个主语从句，并在句中作为say的宾语；第二空是有how引导的表语从句how great an effort he has made to help her out. 其中的How修饰great.句意：他想说的是，他花了多大的努力才帮助她摆脱了困境。故C正确。
点评：what引导名词性从句，在句中做主语，宾语，表语；这些连接代词在句中通常做主语，宾语，表语；连接副词when, where, why, how在句中做状语。连接词whether, if/that在句中不充当任何成分。
本题选C。