Help others whenever you can _______ you will make the world a nicer place to live in.
| A．and | B．or | C．unless | D．but |
When the teacher speaks, we have to keep quiet, ?
| A．don’t we | B．mustn’t he | C．haven’t we | D．doesn’t he |
Man is born yet everywhere he ischains．
| A．freely; on | B．easy; on | C．free; in | D．easily; on |
---Do you have trouble finishing the work?
---The work is not so difficult as you think．We have finished it already．
| A．much | B．any | C．some | D．no |
There more than one member whoagainst the plan．
| A．is; is | B．is; are | C．are; is | D．are; are |
I am thankful to him for that advice, I owe all my success．
| A．to what | B．of which | C．at which | D．to which |