The impact of Einstein’s breakthrough in the field of photo electric effect ____ the understanding of the universe was simply tremendous.
| A．in | B．on | C．with | D．about |
John seems a nice person. ____, I don't trust him.
| A．Even though | B．Even so | C．Therefore | D．Though |
I am sure I can help you find ____ bed for your new house, but now I'm heading for ____ bed and ____ good sleep.
| A．a , a , the | B．a , / , a | C．the , a , a | D．a , the , a |
Dewitt Wallance founded the Reader's Digest as a pocket-sized, non-fiction magazine ____ to inform and entertain.
| A．was intended | B．intending | C．to intend | D．intended |
I found the cat____ under the bed, who had caught a mouse.
| A．hiding | B．hidden | C．to hide | D．having hidden |
Those ___ to go to the exhibition should inform the office.
| A．not wanting | B．who not want | C．not wanted | D．are not want |