There’s growing unrest among the poor and unemployed. The media points out that it’s the government that should have a lot to ________.
| A．answer for | B．stand for | C．go for | D．care for |
(2013·山东，28)________ I have to give a speech, I get extremely nervous before I start.
| A．Whatever | B．Whenever |
| C．Whoever | D．However |
I had hardly got to the office ______ my wife phoned me to go back home at once.
| A．when | B．than |
| C．until | D．after |
I have heard a lot of good things about you ________ I came back from abroad.
| A．since | B．until |
| C．before | D．when |
There's no way of knowing why one man makes an important discovery ________ another man, also intelligent, fails.
| A．since | B．if |
| C．as | D．while |
There are some health problems that, when ________ in time, can become bigger.
| A．not treated | B．not being treated |
| C．not to be treated | D．not having been treated |