问题补充:
Up to now , some less well-off people into the public rental house in Chongqing .
A. moved
B. move
C. have moved
D. are moving
答案:
A. moved
B. move
(答案→)C. have moved
D. are moving
解析: 考查动词时态。时间状语Up to now ,到现在为止,是现在完成时态的标志,所以句子的谓语动词要用现在完成时态,选C。