问题补充：
Jim Jenny every night for the last month since he first met her in London, and they seem to be getting along very well.
A. dated
B. had dated
C. was dating
D. has been dating
答案：
A. dated
B. had dated
C. was dating
(答案→)D. has been dating
解析：考察时态。本题的关键词是since，该词表示自从，后面的从句通常使用一般过去时，前面的主句通常使用现在完成时。时态题的考查关键是抓住句子的上下文含义和句中的时间状语。要根据时间状语来选择合适的时态，在平时的学习中要注意积累有关时态的用法和各种时态的特殊之处。如since， so far等经常与现在完成时连用。在条件状语从句中用一般现在时代替将来时等等。
