题目内容
( ) 1. ―Shall we go for a picnic in the forest park tomorrow?
―Yes? it rains heavily.
A. if B. unless C. until D. when
B
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题目内容
( ) 1. ―Shall we go for a picnic in the forest park tomorrow?
―Yes? it rains heavily.
A. if B. unless C. until D. when
B