2019年mpacc考试英语真题——连词78

{01}I was about to leave for work ______the telephone rang.
A.as
B.until
C.while
D.when
解析：考查固定搭配;be about to do …when….刚要做…这时….，句意是：我刚要去上班这时电话响了。选D。
本题选D。
{02}The girl arranged to have piano lessons at the training centre with her sister________she would stay for an hour
A.where
B.who
C.which
D.what
解析：考查定语从句。本题中先行词为the training centre，做下文逻辑地点状语，故选A。
本题选A。