福建师范大学 / 高级英语阅读(二)
正确率：100%
—The woman biologist stayed in Africa studying wild animals for 13 years before she returned.
—Oh, dear! She _ _ _ _ _ _ _ a lot of difficulties!
A、may go through
B、might go through
C、ought to have gone through
D、must have gone through
参考答案：