You can’t improve your English_________ you work harder than before
| A．if | B．though |
| C．because | D．unless |
Daniel plays chess _______ , if not better than , David .
| A．as well | B．as well as | C．so well | D．so well as |
My teacher probably spoke about this rule ,but I forgot about it or didn’t ______________.
| A．pay attention | B．pay attention to | C．paid attention to | D．pay no attention |
Don’t throw away the waste paper. It needs so that it can be reused.
| A．to destroy | B．destroying | C．to collect | D．collecting |
There is ________ juice or ________ vegetables in the fridge . So we must buy some today .
| A．few ， little | B．a little ， a few | C．little ， few | D．a few ， a little |
Climbing with our best friend Lucy was so that we always invite her to join us .
| A．interested | B．interesting | C．bored | D．boring |