问题
选择题
"___ Libya's oil production returns to normal, I guess, it will be fifteen months," said a UN expert.
A.After
B.That
C.Before
D.Since
答案
答案:C
考察固定句型。It be 一段时间before从句;一段时间以后某事才发生。句意:15个月以后利比亚的石油生产将恢复正常。