2019年mpa考试英语真题——介词和介词短语2874

{01}Mr. Smith graduated from college at the age of 23, and ___________ he has been working as a teacher in a middle school. A.after that B.from then on C.from then D.since then 解析：略
本题选C。

{02}Nobody knows for sure what effect global warming has ___ our environment in the long term. A.of B.with C.for D.on 解析：考查固定句型。Have an effect on sth.“对......有影响”。句意“就长远来看，没有人能够确定全球变暖会给我们的环境带来什么影响。”故选D。
本题选D。