问题补充：
The civil war broke out in Libya, to the instability of the international oil price．
A. to contribute
B. contributed
C. having contributed
D. contributing
答案：
A. to contribute
B. contributed
C. having contributed
(答案→)D. contributing
解析：本题考查非谓语动词。contributing to the instability of the international oil price，现在分词在句中作结果状语。选D。
如果觉得《The civil war broke out in Libya to the instability of the international oil priceA. to》对你有帮助，请点赞、收藏，并留下你的观点哦！
