25. The train leaves at 6:00 p.m., so I have to be at the station ____ 5:40 p.m. at the least.
| A．until | B．after | C．by | D．Around |
— In my opinion, your sister is not fit to be a driver．
—____．She has no sense of direction．
| A．It depends | B．That's it |
| C．It makes no difference | D．It's up to you |
—Tracy, did your whole family go to Paris for sightseeing last year?
—No．____only two of us, my sister and I．
| A．There was | B．It were | C．That were | D．It was |
____ you come across Tom, tell him I could visit him recently．
| A．Should | B．Would | C．Could | D．Might |
—Did you have a good night's sleep, sir?
—Oh, exactly．It was such a comfortable bed．I could never have ____ sleep．
| A．a worse | B．the best |
| C．the worst | D．a better |
—Jenny, will you leave now?
—No．It will be two weeks ____ I leave here．
| A．while | B．since | C．before | D．when |