2019年mpacc考试英语真题——连词391

{01}To improve the quality of our products, we asked for suggestions _____ had used the products.

A.whoever

B.who

C.whichever

D.Which

解析：考查名词性从句。本句结构为ask sb for sth 所以后面从句为宾语从句，从句中缺少had used the products的主语，即使用这个产品的人。故排除CD，根据句意可知，无论是谁使用了产品我们都会向他们寻求建议。故选A
本题选A。
{02}Even though it is at least 20 years _____ we got to know, I can’t forget the scene_____ we were introduced to each other.

A.that , where

B.when, in which

C.since , when

D.since, where

解析：考查特殊句式和定语从句。第一空是一个特殊句式：It be 一段时间since从句 自从…以来有一段时间了。第二空考查定语从句。we were introduced to each other的结构非常完整，所以应该使用关系副词做状语。句意：即使我们认识至少20年了，我还是无法忘记我们被相互介绍的那一幕。
本题选D。