2019年mpacc考试英语真题——连词585

{01}The most favorite room is the tidy study with a fireplace, _____we can watch TV and enjoy the nice scenery outside.

A.where

B.when

C.that

D.which

解析：本题考查状语从句的用法。考生一上来不能为“，”所迷惑，立刻选择了D项which。这里where引导一个状语从句。
本题选A。
{02}As the saying goes, practice makes perfect, ______is only by using English as often as possible can you learn English well.  

A.which

B.as

C.that

D.this

解析：本题考查连词。that is 也就是说。此题很容易看成非限制性定语从句而选错选A。
本题选C。
{03}Scientists say it may be five or ten years___________ it is possible to test this medicine on human patients.

A.since

B.before

C.after

D.when

解析：本题是考查连词的用法。本题的关键是理解句子的含义：“科学家说还需要五到十年才有可能将药物在人体身上进行实验。”只有B选项符合题意。
本题选B。