---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.
| A．would serve | B．served |
| C．had served | D．has served |
John had made up his mind to give it up, but on _________ second thought he determined to have __________ third try.
| A．/ ; / | B． a; a | C．the; a | D．/ ; a |
— If our team gets the first place, we will get a bonus. With that bonus, I will go for a trip with my girl friend.
— _______.
| A．Great minds think alike |
| B．Never judge a book by its cover |
| C．An old dog cannot learn new skills |
| D．Don’t count your chickens until they are hatched |
We attend lectures in the school lecture hall at weekend ____ seats more than 800 students.
| A．which | B．whose | C．where | D．when |
—How dangerous it was!
—Yes, but for the passer-by’s quick action, the girl ________.
| A．was drowned | B．could have been drowned |
| C．had drowned | D．should be drowned |
Due to the widespread________ of this medical technology, more diseases can be discovered and treated at an early stage.
| A．presentation | B．application |
| C．qualification | D．appreciation |