题目内容
--- We'll visit the Summer Palace_______ there is a heavy rain tomorrow.
--- OK ! Boating on the lake must be interesting.
A unless B. since C. until D. if
A
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题目内容
--- We'll visit the Summer Palace_______ there is a heavy rain tomorrow.
--- OK ! Boating on the lake must be interesting.
A unless B. since C. until D. if
A