题目内容
(2014广东)—Shall we go for a picnic in the forest park tomorrow?
—Yes,________it rains heavily.
A.if
B.unless
C.until
D.when
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题目内容
(2014广东)—Shall we go for a picnic in the forest park tomorrow?
—Yes,________it rains heavily.
A.if
B.unless
C.until
D.when