. You didn’t let me drive. If we ____ in turn, you ____ so tired.
| A．drove; didn’t get | B．drove; wouldn’t get |
| C．were driving; wouldn’t get | D．had driven; wouldn’t have got |
After the new technology was introduced, the factory produced _____ tractors in 1998 as the year before.
| A．as twice many | B．as many twice |
| C．twice as many | D．twice many as |
----- shall I sit this end or _____ of the boat? -----_______ if you keep still.
| A．another; Either | B．the other; either |
| C．another; Both | D．the other; Both |
Like the Olympics, the World Cup takes place _____ years.
| A．every four | B．each fourth | C．each four | D．every fourth |
I _____ her, but I _____ her.
| A．know; don’t hear of | B．hear; don’t know |
| C．have known; haven’t heard of | D．have heard of; don’t know |
I’ll be back _____ 5 o’clock tomorrow afternoon.
| A．about | B．around | C．until | D．for |