It is more important than ever to develop one’s maths, science and computer skills _______technological change is accelerating.
| A．though | B．unless | C．until | D．because |
I wish I ____ clever enough to work out the ____ geometry problem.
| A．can be; abstract | B．could be; abstract |
| C．can be; easy | D．could be; easy |
If I ____ more about diamond, I ____ cheated by that man.
| A．had known, would not be | B．had known; wouldn’t have been |
| C．knew; would not have been | D．had known; would never be |
Some of you may have finished unit one, _____, you can go on to unit two.
| A．If you may | B．If you do | C．If you finished | D．If so |
The incomes of skilled workers went up. ______, unskilled workers saw their earnings fall.
| A．Moreover | B．Therefore | C．Meanwhile | D．Otherwise |
Little ___ about her own safety, though she was in great danger herself.
| A．did Rose care | B．Rose did care | C．Rose does care | D．does Rose care |