The value of life lies not in the length of days ，but in the use we ______ them.
| A．make | B．made of | C．made | D．make of |
I don’t know who invented ________ telephone. It’s really ________ most useful invention.
| A．the; a | B．/; a | C．a; the | D．/; the |
I know a little bit about the city as I __________ there for one year in my youth.
| A．am studying | B．had studied | C．studied | D．have studied |
Could you show me the TV set you’d like ________?
| A．to have repaired | B．repairing it | C．to have it repaired | D．to repair it |
Now an increasing number of middle school students go abroad for further study at their own ________, trying hard to realize their dreams.
| A．price | B．cost | C．expenses | D．pay |
When somewhat better ________ academically, he returned home to continue his research.
| A．equipped | B．had equipped |
| C．provided | D．providing |