— You look puzzled at the news.
— Yes. I just can’t imagine _____ he could have done such a thing.
| A．what | B．how | C．whether | D．Where |
Please remain _________ until the plane has come to a complete stop.
| A．to seat | B．to be seated | C．seating | D．seated |
I don’t think television will ever ______ books.
| A．take place | B．take the place of | C．take their place | D．take place of |
There were no tickets _________ for Friday’s performance so we went to the cinema instead.
| A．available | B．valuable | C．expensive | D．enthusiastic |
.________ the sunlight for a long time is harmful to your skin.
| A．Exposed to | B．To expose in | C．Exposing in | D．Being exposed to |
______ in his book, he didn’t notice me when I entered the room.
| A．Devoted | B．Absorbed | C．Absorbing | D．Devoting |