We want such materials ________ can bear high temperature and pressure.
| A．that | B．as | C．what | D．which |
–How do you find your new classmates?
– Most of them are kind, but ____ is so good to me as Bruce.
| A．none | B．no one | C．every one | D．some one |
_______ is our belief that improvements in health care will lead to a stronger, more prosperous economy.
| A．As | B．That | C．This | D．It |
He is only thirty, but has got _____.
| A．a few grey hairs | B．a few grey hair | C．a little grey hair | D．a little grey hairs |
When _______a hand, one should say “Thank you” or “It’s very kind of you.”
| A．offered | B．to offer | C．to be offered | D．offering |
Some students think it is ___ to spend some time surfing the Internet, but we shouldn’t be too dependent on it.
| A．worth | B．worthwhile | C．worthy | D．worthy of |