She is American，__________she knows little about American history.
| A．so | B．yet | C．and | D．therefore |
It is usually warm in Autumn here. But it _____ be freezing sometimes.
| A．will | B．should | C．may | D．can |
Alice is now in the UK, but she _____ English for three months in Hong Kong.
| A．did study | B．has studied | C．had studied | D．studies |
As a consequence of the financial crisis, many companies are not _____ new staff this year.
| A．taking in | B．taking on | C．taking up | D．taking away |
Seven people in all lost their lives in the accident, three of _____ Chinese.
| A．which | B．whom | C．them | D．who |
Eggs in western countries are often sold by _____.
| A．a dozen | B．the dozen | C．dozens | D．dozen |