2019年mpacc考试英语真题——连词381

{01}Bring the flowers into a warm room _____ they"ll soon open.
A.or
B.and
C.but
D.for
解析：
本题选B。

{02}The girl had hardly rung the bell ________ the door was opened suddenly, and her friend rushed out to
greet her.
A.before  
B.until
C.as  
D.since
解析：
本题选A。