You will never know the result ______ you try it by yourself.
| A．when | B．if | C．unless | D．after |
同意词的应用
—Why do you look so worried?
—Because I can’t solve the problem．I’m afraid I can’t pass the exam．
A．deal with
B．face
C．set off
I have invited her to have a dinner. But she __________ .
| A．agreed | B．agreed with |
| C．refused | D．allowed |
The bike needs __________.
| A．mend | B．mending |
| C．to mend | D．mended |
__________ this medicine three times a day ,and you will get better .
| A．Take | B．Eat | C．Have | D．Drink |
Dad ,why must I stop__________ computer games?
For your health ,my boy .
| A．to play | B．play |
| C．to playing | D．playing |