When the winter , all the construction works in northern China have to be stopped .
A. sets off
B. sets out
C. sets aside
D. sets in
网友回答
A. sets off
B. sets out
C. sets aside
(答案→)D. sets in
解析：短语辨析。sets off出发，动身； sets out出发，陈述；sets aside留出，撤销；sets in到来，开始。句意：当冬天到来时，所有在北方的建筑工人不得不被停下来。联系语义可知选D。