Linda went to the bookstore and bought_______.
| A．dozen books | B．dozens books |
| C．dozens of books | D．dozen of books |
She bought eggs yesterday, but there were them broken．
| A．two scores of ; scores of | B．scores of; two scores of |
| C．scores of; two score of | D．score of; two scores |
He is giving her French lessons in ________ for her teaching him English．
| A．place | B．turn | C．exchange | D．change |
—Could you do me a favor and take these books to my office?
—Yes, .
| A．for pleasure | B．I could | C．my pleasure | D．with pleasure |
_____ entered the office when I realized that I had forgotten to bring my report.
| A．I hardly had | B．Had I hardly | C．Hardly had I | D．Hardly I had |
It is known to all that ____ you exercise regularly, you won’t stay healthy.
| A．because | B．unless | C．now that | D．in case |