Mr. Richard hasn’t got any time to play golf these days, because he is ______ in the research of bird language.
| A．devoted | B．concentrated | C．buried | D．spared |
. Have you decided ______ the color of your new car?
| A．on | B．for | C．with | D．at |
The operator put him ______ to 83428091.
| A．out | B．in | C．through | D．on |
. To our ______, the result of the experiment is much better than we expected.
| A．regrets | B．relief | C．disappointment | D．sorrow |
Fill in the ______ first and then wait for the interview in the next room.
| A．application | B．tablet | C．enquiry | D．recipe |
He is familiar _____ this place, because he used to live in the apartment.
| A．for | B．with | C．of | D．at |