16. I will come and see you before I________for America. A. leave B. will leave C. have left D. left 17. When the first child was born, they _______ for three years. A. have been married B. had been married C. will be married D. will have been married 18. It________a long time since we were apart. I did not recognize her. A. is B. has been C. was D. had been 19. Many of the people who attended Mr. David’s funeral________him for many years. A. didn’t see B. wouldn’t see C. haven’t seen D. hadn’t seen 20. We were both very excited about the visit, as we________each other for________ages. A. never saw B. didn’t see C. hadn’t seen D. haven’t seen