Could you return my call before 3 p.m.?
你能在3點前回復我嗎?
A. Sure, I'll call you around 2:30.
A.當然,我會在2點半打電話給你。
B. No, she hasn't returned yet.
B.不,她還沒有回復。
C. No, I think it's 4 p.m.
C.不,我認為要4點了。