It was in the lab __________was in the charge of Professor Smith __________they carried out the experiment.
| A．where；that | B．which；where | C．that；where | D．which；that |
The Japanese have ______ uneasy feeling about ________ increasing use of foreign words.
| A．an; a | B．the; the | C．an; the | D．the; a |
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 |