题目内容
— I hear the famous singer Xu Song may come to Ningbo next month.
— Really? _______ he comes, my younger sister will be very excited.
A. If B. Until C. Unless D. Before
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题目内容
— I hear the famous singer Xu Song may come to Ningbo next month.
— Really? _______ he comes, my younger sister will be very excited.
A. If B. Until C. Unless D. Before