问题
单项选择题
We were working ______ time to get everything ready for the exhibition.
A．against
B．in
C．on
D．ahead
答案
参考答案：A
解析：[分析] 固定搭配。 A．(work) against (time)抢时间完成工作：B．in(time)及时：C．on(time)按时、准时：D，ahead表“提前”时一般用ahead of。