I’ve listened to Professor Smith’s talk about medicine,but I still haven’t got a good understanding of its key _________.
| A．notes | B．information | C．words | D．points |
This book tells_____life story of John Smith, who left______school and worked for a newspaper at the age of 16.
| A．the; 不填 | B．the; the |
| C．a; the | D．a; 不填 |
---Believe it or not, I have met him before.
---No kidding? ______ you’ve never mentioned it?
| A．What if | B．What for |
| C．How come | D．How about |
It is our duty to try to ______ production and reduce the number of things we make and buy.
| A．cut back on | B．put up with |
| C．hold on to | D．run out of |
Our factory has been developing rapidly this year. This year’s production is five times _____ it was ten years ago.
| A．that | B．what |
| C．which | D．as |
We should produce less things from raw materials, _____ is growing smaller and smaller.
| A．whose supplies | B．the supply of which |
| C．which supply | D．the supply of whom |