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 |
—Kate！Have you got an invitation(请柬) from Nancy?
—_____. A what?
| A．Yes, I’ve got one | B．I’m sorry I don’t know |
| C．Say again | D．I beg your pardon |
I can never forget the day ____we worked together and the day _____we spent together.
| A．when; which | B．which; when |
| C．what; that | D．on which; when |
—You ran into Mr. Li ! How did that happen?
—Well, _____ of us was looking where we were going. We came around the corner at the same time.
| A．neither | B．either | C．both | D．none |
Although ____ badminton is my favorite sport, I am not _____ very good player.
| A．the ; a | B．the ; the | C．/ ; a | D．/ ; the |
Does the way you thought of ________ the water clean make any sense?
| A．making | B．to make | C．how to make | D．having made |