Tom took a taxi to the airport, only __________ his plane high up in the sky.
| A．finding |
| B．to find |
| C．being found |
| D．to have found |
A significant proportion of such children are condemned______.
| A．fail | B．to fail | C．failing | D．failed |
While typing, Helen has a habit of stopping _____ to give her long and flowing hair a smooth.
| A．occasionally | B．simultaneously | C．eventually | D．directly |
The noise was so _____ that only those with excellent hearing were aware of it.
| A．dim | B．soft | C．faint | D．gentle |
If he refuses to _____ my plan, I can probably find someone more cooperative.
| A．put up with | B．fall in with | C．do away with | D．get along with |
Some people either _____ avoid questions of right and wrong or remain neutral about them.
| A．violently | B．sincerely | C．properly | D．deliberately |