Was it in 2002 __________ he was still at middle school __________ the boy became expert at computer?
| A．that; where | B．when; where | C．that; when | D．when; that |
At the end of the eighteenth century, masks _________ completely.
| A．ban | B．had banned |
| C．banned | D．were banned |
We live in an age _________ more information is available with greater ease than ever before.
| A．why | B．on which |
| C．to whom | D．when |
Before he volunteered to direct traffic, Timoteo _________ lots of jobs.
| A．had had | B．has |
| C．have had | D．had |
—I looked after a group of fifteen French children.
—That _________ easy!
| A．mustn’t be | B．mustn’t have been |
| C．can’t have been | D．wasn’t |
Let him _________ ; he is a man of _________ temper.
| A．alone; variable | B．lonely; various |
| C．alone; various | D．lonely; variable |