2019年mpa考试英语真题——介词和介词短语1083

{01}When I told her that our journey would begin _____ an altitude of more than 5,000 metres, she seemed to be
excited about it.
A.at
B.in
C.on
D.off
解析：
本题选A。

{02}Mother wants to be a good provider, a role she has been shouldering _____ her marriage to Father. 
A.when
B.until
C.before
D.since
解析：
本题选D。