2019年mpa考试英语真题——连词1167

{01}I have no idea ______ it is that makes him puzzled. A.how B.what C.why D.which 解析：词义辨析。A. 怎样  B. 什么C.为什么  D.哪一个。句意：我不知道是什么让他迷惑不解。从句缺少主语，故选B。
本题选B。
{02}．You’d better get the problem solved as soon as possible ______ it becomes out of control． A.when B.before C.since D.unless 解析：考察连词.句意:你最好在它变得失控之前尽快解决这个问题.选B,在……之前。
本题选B。
{03}Who was it _______ wanted to see me just now? A.whom B.that C.when D.which 解析：此题为特殊疑问句的强调句型。其结构为： 疑问词+ is/was +it + that + 其它，句意：就是谁刚才想见我？所以选B。
本题选B。