The Chinese agricultural tax wasn’t pletely abolished 2006, which reduced the farmers’ burden greatly.
A. until
B. before
C. since
D. after
网友回答
(答案→)A. until
B. before
C. since
D. after
解析：句意：中国的农业税直到2006年才取消，这就大大地减少了农民的负担。not…until直到……才；before在……以前；since自从；after在……之后。根据句意故选A。