With the debt problem worsening, it is going to be a test for EU to help Greece out of trouble.
A. tough
B. smooth
C. distant
D. private
网友回答
(答案→)A. tough
B. smooth
C. distant
D. private
解析：形容词辨析。A困难的，艰巨的，崎岖的；B光滑的；C遥远的；D私人的；结合句意可知A正确。句意：随着欧债问题的恶化，欧盟帮助希腊摆脱困境将是一件困难的测试。