John _____ knowledge of radio just by staying around the radio station.
| A．caught on | B．worked up | C．took up | D．picked up |
They used what they had _____ for their daughter.
| A．to buy a new dress | B．buying a new clothes |
| C．bought a new suit | D．buy a new clothing |
_____ by the appearance, he has just been frightened at the terrible news.
| A．Judged | B．To be judged | C．Judging | D．Judge |
Professor Smith is said _____ another important discovery in chemistry.
| A．having made | B．making | C．to have made | D．to make |
I _____ the truth of your remarks, although they go against my interests.
| A．cannot but admit | B．cannot but to admit |
| C．cannot but admitting | D．cannot help but admitting |
Many teachers were praised at the meeting, Mr. Zhou _____.
| A．including | B．being included | C．to include | D．included |