Thomas Edison considered genius to be _____ one per cent inspiration and ninety-nine percent perspiration.
| A．composed of | B．constituted in | C．consisted of | D．comprised in |
_______ how to do the homework, I went to ask my teacher for help.
| A．Not to know | B．Not knowing | C．Knowing not | D．Not known |
We advised them to take a rest, but they insisted _______ the work.
| A．finish | B．to finish | C．in finishing | D．on finishing |
I've never heard the word _______ in spoken English.
| A．use | B．used | C．using | D．useing |
.The result of the test was rather _______.
| A．disappointed | B．disappointing | C．being disappointed | D．disappoint |
.There was so much noise in the room that the speaker couldn't make himself
| A．being heard | B．hearing | C．heard | D．hear |