-If you could reduce the price __________$15，I could increase my order.
-I'm afraid the best I can do is $10.
| A．by | B．to |
| C．at | D．for |
To my surprise,he___in class
| A．is always speaking |
| B．would always speak |
| C．has always been speaking |
| D．does speak always |
According to the timetable,the train for Shanghai ___at 7 o’clock in the evening
| A．leaves |
| B．has left |
| C．was left |
| D．will leave |
The house belongs to my aunt but she___here any more
| A．hasn’t lived |
| B．didn’t live |
| C．hadn’t lived |
| D．doesn’t live |
Either you or one of your students___to attend the meeting that is due tomorrow
| A．are |
| B．is |
| C．have |
| D．be |
The father as well as his three children___skating on the frozen river every Sunday afternoon in winter
| A．is going |
| B．go |
| C．goes |
| D．are going |