The scientists are now trying to discover what use could be ________ such material.
| A．made out | B．made up | C．made of | D．made from |
Mike’s father, as well as his mother, commanded that he _____ home.
| A．stayed | B．could stay | C．stay | D．has stayed |
_____ is not only what you do, but also how you do it that makes the difference.
| A．There | B．This | C．That | D．It |
He is such a man that _________ his clothes very much.
| A．cares about | B．cares for | C．takes care | D．takes care of |
His whole school education _____ only 2 years because of his illness.
| A．added up | B．added up to | C．added to | D．was added up to |
The shop _____ until 7 o’clock.
| A．stayed opened | B．continues open | C．stays open | D．continues opened |