单选题 Jack and Lynn will ______ married for thirty years tomorrow.
A. have B. be
C. become D. have been

【正确答案】 D
【答案解析】[解析] tomorrow(明天)说的是未来某一时刻完成的情况，因此应该用＜will+have+p.p.＞的未来完成时形式。