题目内容
We’ll have a picnic in the park this Sunday ________ it rains or it’s very cold.
[ ]
A.since
B.if
C.unless
D.until
答案:C
练习册系列答案
相关题目
题目内容
We’ll have a picnic in the park this Sunday ________ it rains or it’s very cold.
A.since
B.if
C.unless
D.until