问题
选择题
(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
答案
答案：B
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。
