(2012·福建，30)It is hard for the Greek government to get over the present difficulties it gets more financial support from the European Union.
A. if
B. unless
C. because
D. since
网友回答
A. if
(答案→)B. unless
C. because
D. since
解析：句意：希腊政府很难克服目前的困难，除非从欧盟获取更多的经济支持。本题考查条件状语从句。if如果；unless除非；because因为；since自从。