---Your grandfather still seems very energetic, although he is already in his seventies now. ---Yes, he _______in the army for three years when he was young.
(陕西卷25). ----What a fine day! Shall we go picnicking?
----. But we need to be home before six o’clock for the football match.. (C)
A. Have a nice time. B. Pardon me C. That’s great D. You are right