问题
May I visit you at 10 o’clock tomorrow morning— I’m afraid I ______ a document for my boss then.What about 12:00
A:am preparing
B:will haveprepared
C:will bepreparing
D:have beenpreparing
B:will haveprepared
C:will bepreparing
D:have beenpreparing
正确答案是：
同类题型
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