The buses, ________ were already full, were surrounded by an angry crowd.
| A．most of them | B．which most |
| C．most of which | D．that most |
Unluckily, the poor girl got a(an) __________ disease, which even doctors couldn't name.
| A．informal |
| B．common |
| C．rare |
| D．secret |
Finally the English government tried in the early twentieth century to form the UK by getting Ireland __________ in the same peaceful way.
| A．connected |
| B．to connect |
| C．connect |
| D．connecting |
The bridge built ten years ago __________ the island __________ the mainland.
| A．connects ； to |
| B．connecting ； with |
| C．is connected ； to |
| D．connected ； by |
The bus __________ passengers outside the airport.
| A．gives up |
| B．picks up |
| C．turns up |
| D．eats up |
—Is the dentist at work?
—I'm sorry to tell you he is on __________.
| A．an enough holiday long |
| B．a long enough holiday |
| C．a holiday enough long |
| D．a long vacation enough |