---Have you been______?
---Yeah．As a matter of fact, I’ve been going to the gym for half a year now．
| A．carrying out | B．turning out | C．making out | D．working out |
He asked where she ____, but she didn’t respond.
| A．had been | B．was | C．has been | D．is |
The teacher ___________his students to work hard.
| A．urged | B．suggested | C．demaded | D．couraged |
After the age of 50 people often _____________ their individual ambitions.
| A．desert | B．give in | C．give away | D．abandon |
He is a key ____________ in the murder so we must protect him from all kinds of danger.
| A．witch | B．watcher | C．wizard | D．witness |
Russia is _________ on the north of China.
| A．bounded | B．bound | C．boundary | D．lied |