2019年mpa考试英语真题——连词341

{01}Clouds are gathering. I think we"d better head for the school ________ it starts to rain. 　　
A.so that 　　　
B.in order　　　
C.in case of　　　
D.in case
解析：
本题选D。

{02}The school rules state that no child shall be allowed out of the school during the day, _____ accompanied
by an adult.
A.once
B.when
C.if
D.unless
解析：
本题选D。