题目

—Can you join us in the discussion at 5 o'clock this afternoon?—Sorry. I ________ an important meeting then. A . will attend B . am attending C . will be attending D . will have attended 答案：C俄罗斯的面积：幅员辽阔，是世界上面积最______的国家，也是惟一地跨亚、欧两个大洲和______半球的国家．