专题数词1. Today is Jacks birthday.He is years old now.A. Fourteenth B. fourteen C. the fourteenth D. the fourteen2. -How do you keep fit? -I live on floor. I walk upstairs instead of taking the lift every day.A. twelve B. the twelve C. the twelfth3. -How old is your daughter? - . We had a special party for her birthday yesterday.A. Nine; nine B. Nine; ninth C. Ninth; ninth D. Ninth; nine4. Li ming will be .