Investigators are still trying to determine the __________ of the accident.
| A．cause | B．problem | C．reason | D．puzzle |
Henry escaped ________ by admitting his mistake as soon as he saw the headmaster．
| A．to be punished | B．punishing | C．having punished | D．being punished |
His radio is a very old one. It sometimes works and sometimes it_______
| A．seldom does | B．does hardly | C．never does | D．doesn’t |
The medical team left the village with great satisfaction,________a lot of local villagers.
| A．treating. | B．to treat. | C．treated. | D．having treated |
一I think you should phone Jenny and say sorry to her.
一＿．It was her fault.
| A．No way | B．Not possible | C．No chance | D．Not at all |
Someone knocked at your door just now,but I didn’t see whowas.
| A．this | B．it | C．that | D．one |