问题
选择题
Frank, with his two sisters, _____London by train which _____at 8:30 next morning.
A．is leaving for; will leave
B．are leaving for; leaves
C．is leaving for; leaves
D．will leave for; will leave
答案
答案：C
题目分析：句意：Frank和他的两个妹妹将要乘明天8:30的火车去伦敦。此处第一空用进行时表示将来时，第二空表示固定时间表用一般现在时。故选C。