摘要： We are going to have a barbecue D it rains . A. if not B. when C. except that D. unless
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We are going to have a barbecue _______ it rains .
A. if not B. when C. except that D. unless
查看习题详情和答案>>We are going to have a barbecue _______ it rains .
|
A．if not |
B．when |
C．except that |
D．unless |
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