An awful accident, however, _____occur the other day.
| A．does | B．did | C．has to | D．had to |
Some countries are rich, others are extremely poor.
| A．while |
| B．as |
| C．unless |
| D．when |
The old man some English when visiting his daughter in the UK. He can even communicate with some foreigners with what he has learned.
| A．picked up |
| B．took up |
| C．made up |
| D．turned up |
Last year, the committee five members, one elderly,two middle-aged and two young comrades.
| A．is consisted of |
| B．consists of |
| C．consisted of |
| D．are consisted of |
Six people, four firemen, were treated for burns, but no one was seriously hurt.
| A．to include |
| B．included |
| C．to be included |
| D．including |
Every time someone tried to explain the game to me,l got even more.
| A．confusing;confused |
| B．confusing; confusing |
| C．confused; confused |
| D．confused; confusing |