2019年mpacc考试英语真题——介词和介词短语2257

{01}You are certain to live your dream ____ you make great efforts and lay emphasis on improvements in efficiency.

A.on condition that

B.as far as

C.even though

D.in case

解析：考查连词辨析。on condition that条件是；as far as就……而言；even though即使；          in case以防。句意：你一定会实现你的梦想，条件是你作出巨大努力和强调有效的提升。
本题选A。

{02}____ the morning of my mother’s birthday, I usually help my mother do some housework.

A.In

B.At

C.During

D.On

解析：考查介词，在具体某一天的早上，下午，晚上都是介词on，句意是;在妈妈生日的早上，我通常帮妈妈做家务。选D。
本题选D。