Young as he is, David has gained ____ rich experience in ____ society.
| A．the; the | B．a; 不填 | C．不填；不填 | D．不填；the |
I _____the hobby of fishing as a child.
| A．built up | B．set up | C．kept up | D．took up |
We have moved into a four-room flat so far. Our room is between _____.
| A．Mary’s and Helen’s | B．Mary and Helen’s |
| C．Mary and Helen | D．Mary’s and Helen |
-I wonder why Mr Green hasn’t showed up at the meeting yet.
-I’m not sure, but he _______ in a traffic jam driving here.
| A．could be stuck | B．might stuck |
| C．might have been stuck | D．must have stuck |
When I got to the cinema, the film _____ for five minutes.
| A．had begun | B．has been on |
| C．has begun | D．had been on |
Mary had promised to give me a ticket for tomorrow. She failed, ____.
| A．either | B．though | C．but | D．too |