2019年mpacc考试英语真题——连词25

{01}Mary was about to go to bed ________ someone knocked at the door．
A.when
B.while
C.as
D.since
解析：when在此处表示“就在这时”，通常主句为将来时或进行时。
本题选A。
{02}________ all you had done to him , he still treated you so kindly．
A.In spite
B.No matter
C.Despite
D.Although
解析：
本题选C。