高等继续教育 / 英语语法
正确率：100%
题型描述: 单选题
We’ll have a picnic in the park this Sunday _ _ _ _ _ it rains or it’s very cold.
A.if
B.until
C.unless
D.since
We’ll have a picnic in the park this Sunday _ _ _ _ _ it rains or it’s very cold.
A.if
B.until
C.unless
D.since
参考答案：
佳题速递：