问题补充:
Tom with his grandmother for eight years,but now he is living by himself.
A. lives
B. 1ived
C. has lived
D. has been living
答案:
A. lives
(答案→)B. 1ived
C. has lived
D. has been living
解析:考查时态:句意:汤姆和他祖母生活了八年,但是现在他一个人生活。因为现在汤姆没有和祖母生活,所以live这个动作是发生在过去8年,和现在没有联系,用一把过去式。选B。