问题
选择题
Though Professor Liu ____ in New York for seven years, he has never regretted moving back to Shanghai, his hometown.
A．lived
B．has lived
C．had lived
D．was living
答案
答案：A
考查时态，句意：虽然刘教授在纽约生活过七年，但是他从来没后悔过搬回自己的家乡，上海。根据句意在纽约居住的动作是过去，现在已经不住了，所以用一般过去式，选A。
