_________, the experiment is sure to succeed.
| A．If carefully doing | B．If carefully done |
| C．If it done carefully | D．If it doing carefully |
The boss commanded that the task ______ before 5 o’clock this afternoon.
| A．was finished | B．finished |
| C．be finished | D．would finish |
Every chance should be made use of ______ English.
| A．speak | B．to speaking |
| C．to speak | D．speaking |
I don’t like ______ you speak to her.
| A．the way in that | B．the way which |
| C．the way of which | D．the way |
The number of the teachers who ______ cars in our school ______ increasing very fast.
| A．own; is | B．owns; is |
| C．own; are | D．owns; are |
I’ve bought an English dictionary which you can ____ if you meet new words.
| A．get to | B．come to |
| C．refer to | D．look up |