John is ______ European but doesn’t know or speak ______English language at all.
| A．an，a | B．a，the | C．the ，an | D．a，不填 |
—What are you going to do this afternoon?
—I’ll probably go for a walk later on __________ it stays fine.
| A．as far as | B．so long as | C．even if | D．as though |
We must take all possible measures _________ to improve working conditions.
| A．tend | B．tending | C．tended | D．being tended |
The description was pretty __________, so the police couldn’t figure out the portrait of the criminal.
| A．vague | B．accurate | C．particular | D．vain |
After three hours’ climbing , they reached they thought was the place they’d been dreaming of .
| A．what | B．which | C．where | D．that |
I showed an old friend of mine around the city,surprise, the changes had been so great.
| A．whose | B．which | C．to whose | D．to which |