'Expatriate workers' (Line 5, ParA.4) are those who______.
A.can't find jobs in their own countries
B.leave their countries to live and work abroad
C.have to leave their countries for all their life
D.are professionals in medicine, law and other professions

A.A.can't
B.leave
C.have
D.are

【参考答案】

B
解析：expatriate workers是指“移居国外的工人”。