They stayed with me three weeks, _____ they drank all the wine I had.
| A．which | B．which time |
| C．during which time | D．during which |
______ advice I give him , he just does not listen.
| A．However | B．No matter how | C．No matter | D．Whatever |
—How would you like your coffee?
—_______.
| A．It's well done | B．Very nice, thank you |
| C．One cup. That's enough | D．The stronger, the better |
That passenger was very impolite to the conductor, ______, of course, made things even worse.
| A．who | B．which | C．what | D．that |
His experiment done in ______ summer of 1970 was ______ failure.
| A．/; a | B．/; / | C．the; a | D．the; / |
Once natural resources _____ , the consequence will be unimaginable.
| A．use up | B．run out | C．are given out | D．run out of |