It is useful to be able to predict the extent _____ a price change will affect supply and demand.
| A．fromwhich | B．withwhich | C．towhich | D．for which |
.This printer is of high quality and very expensive. ________, we would buy __________.
| A．Should the price of it be brought down; one |
| B．If the price of it be brought down; one |
| C．The price of it was brought down; it |
| D．Brought down; it |
I see no reason why they shouldn’t go on playing for another four or five years, __________they are fit.
| A．provided | B．supposed | C．suggesting | D．pretending |
The boss didn’t accept the reason for her being absent for the meeting_________ she didn’t know there was a meeting and __________100yuan from her salary this month.
| A．why; kept back | B．that; kept back |
| C．where; keep out | D．because; keep out |
The boss didn’t accept the reason for her being absent for the meeting_________ she didn’t know there was a meeting and __________100yuan from her salary this month.
| A．why; kept back | B．that; kept back |
| C．where; keep out | D．because; keep out |
It was quite a few years __________the accused was declared innocent and set free.
| A．since | B．that | C．when | D．before |