It's said that they a better life ever since they moved to the US.
A. had enjoyed
B. have been enjoying
C. were enjoying
D. would enjoy
网友回答
A. had enjoyed
(答案→)B. have been enjoying
C. were enjoying
D. would enjoy
解析：B 考察动词时态。句义：据说，他们自从搬到美国后一直过着更好的生活。根据句义可知，此处表示动作从过去某一时间开始，一直延续到现在，可能还要继续下去。故应该使用现在完成进行时。故B正确。