Experts think that ________ recently discovered painting may be ________ Picasso.
| A．the；/ | B．a；the | C．a；/ | D．the；a |
Joe Jones, the eldest of the eight children, had to ________ out of high school at the age of 16 to help his father on the farm.
| A．leave | B．drop | C．fall | D．go |
He missed _______ when he was in Africa.
| A．killing | B．to be killed | C．to kill | D．being killed |
In our town, wood can ___________ a fire.
| A．be used to make | B．be used to making |
| C．use to make | D．used to making |
In the past five years China ________ great _________.
| A．made, progress | B．has made, progresses |
| C．made, progresses | D．has made, progress |
They talked for about an hour of things and persons _____ they remembered in the school.
| A．which | B．that | C．who | D．whom |