专升本考试

试题来源：专升本英语-119
【单选题】 They were at work when they received _______SOS from _______school, and they immediately stared their police cars.
A．the, the
B．a, a
C．an, a
D．the, a

参考答案：C
网考网解析：
[参考译文] 当他们在工作时接到了来自一所学校的求助，于是他们赶紧发动了警车。两... 查看试题解析出处>>