问题补充:
—Alan, it’s late. Why not go to bed?
— Jenny hasn’t come back yet. I for her.
A. waited
B. have waited
C. am waiting
D. was waiting
答案:
A. waited
B. have waited
(答案→)C. am waiting
D. was waiting
解析:本题考查时态运用。由句意“艾伦,很晚了,为什么还不睡?”“詹妮还没有回来。 我她”由语境分析,艾伦现在是正在等詹妮回来。应用现在进行时态。故选C。