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题目内容
（西安交通大学-土木工程-英语）
This time the day after tomorrow, they
_ on the beach, having a lot of fun. A.am sittng B.sit
C. would sit D.will be sitting
_ on the beach, having a lot of fun. A.am sittng B.sit
C. would sit D.will be sitting
参考答案
