_________ hard one may work, one cannot master a foreign language in a year or two.
| A．Though | B．As | C．While | D．However |
If businessmen are taxed too much, they will no longer be motivated to work hard, with the result that
incomes from taxation might actually ____.
| A．delay | B．shrink | C．relieve | D．depress |
In my opinion, this is not an economical way to get more water; ____, it is very expensive.
| A．on the other hand | B．on the contrary | C．in short | D．or else |
Jenny was very sad over the loss of the photos she had shot at Canada, ____ this was a memory she
especially treasured.
| A．as | B．if | C．when | D．where |
____ Chinese traditional painting, Sally has come to China to learn how to paint.
| A．Adoring | B．To adore | C．Having appealed | D．Appealing |
Since everyone would like to find an apartment near the university, there are very few ____ apartments in the area.
| A．free | B．vacant | C．empty | D．reserved |