高等继续教育 / 高级英语II
正确率：100%
题型描述: 单选题
Sometimes things just have to take a natural ＿＿＿＿＿＿＿. You have to wait patiently until conditions are ripe for changes.
A.course
B.cause
Sometimes things just have to take a natural ＿＿＿＿＿＿＿. You have to wait patiently until conditions are ripe for changes.
A.course
B.cause
参考答案：
佳题速递：