-- Is this article difficult to understand?
-- Yes, ________ it isn’t long and there aren’t any new words in it.
| A．though | B．so | C．because | D．since |
He used to to school by bike but he is used to to school now.
A．go; walking B．go; walk C．going; walk
You will have nothing to do this evening, ?
A．will you B．won’t you C．don’t you
The Internet makes the world become .
A．bigger and bigger B．more and more C．smaller and smaller
—Only I can work out the problem in our class.
—you are!
A．How clever B．What clever C．What a clever
The workers when he to the workplace.
A．were working, was getting B．worked, got C．were working, got