People have always been ________ about exactly how life on earth began.
| A．curious | B．excited |
| C．anxious | D．careful |
Tom pretended______it but in fact，he knew it very well.
| A．not listen to | B．not to hear about |
| C．not to have heard about | D．not to be listening to |
Without facts，we can’t form a correct opinion，for we need to have actual knowledge______our thinking.
| A．which to be based on | B．which to base on |
| C．on which to base | D．which to base |
The new coat looks too large on Mary，so her mother had to______.
| A．cut it out | B．cut it down | C．cut it off | D．cut it up |
The evening news comes on at 7 o’clock and ______only thirty minutes.
| A．keeps | B．continues | C．finishes | D．lasts |
—Shall we go to the market to get some apples？
—Look！It ______rain.Let’s make it another time.
| A．will | B．is going to | C．would | D．shall |