Although he is very old, _________ he works very hard.
| A．and | B．but | C．/ | D．so |
The meeting________by the time I got there yesterday．
| A．was on |
| B．has been on |
| C．had begun |
| D．has begun |
—I wore spots shoes to the ball yesterday evening by mistake!
—Oh，dear，you must be very________at the ball!
| A．embarrassed |
| B．satisfied |
| C．tired |
| D．surprised |
—Do you have Jay’s CDs?
—Sorry，they are________．But we’ll get some more next week because they________．
| A．sold well；are on sale |
| B．sold out；sell well |
| C．selling well；sell well |
| D．for sale；sell well |
By the time I locked the door，I realized I________my keys at home．
| A．had repaired |
| B．had changed |
| C．had forgotten |
| D．had left |
—“Food Safety”has become one of the hottest topics recently．
—Yeah，it receives________Internet hits(点击)a day．
| A．thousands |
| B．thousand of |
| C．thousands of |
| D．ten thousands |