Many people see the computer as a “magic box”, and are not concerned with ______ it works.
| A．that | B．whether | C．how | D．if |
I prefer a flat in the suburb toin downtown , because I want to live near my Mom’s .
| A．one | B．that | C．it | D．this |
On hearing the news, the girl rushed out without hesitation , ___the luggage ___on the floor and ____ in the dark.
A left, lied, disappearedB. leaving, lying, disappeared
C. leaving, lie, disappearedD. left, lay, disappear
_____ the front door ___, he had to enter the room through the back door.
| A．Seen, painted | B．Seeing, painted |
| C．Seeing, being painted | D．Being seen, being painted |
By law,when one makes a large purchase, he should have _____ opportunity to change his mind.
| A．accurate | B．adequate | C．urgent | D．excessive |
How long do you think it will be ________ the computer company puts forward a new product?
| A．before | B．since | C．until | D．that |