. The noise was so _____ that only those with excellent hearing were aware of it.
| A．dim | B．soft | C．faint | D．gentle |
__________，he will not take off his coat.
| A．However it is hot |
| B．However hot it is |
| C．However hot is it |
| D．However is it hot |
People from all over the country __________ they are old or young, rich or poor, are doing whatever they can to help the sufferers in the earthquake-stricken area.
| A．even if |
| B．whether |
| C．no matter |
| D．whichever |
If we work hard with a strong will, we __________ overcome any difficulty，__________ great it is.
| A．must; however |
| B．need; whatever |
| C．can; however |
| D．will; whatever |
The little boy won't go to sleep __________ his mother tells him a story.
| A．or |
| B．unless |
| C．but |
| D．whether |
I don't believe we've met before，__________ I must say you do look familiar.
| A．therefore |
| B．although |
| C．since |
| D．unless |