My friend Mary is _________beautiful girl, _________girl everyone likes to work with.
| A．a , a | B．a , the | C．the, a | D． the , the |
The genes of the cloned animals are so arranged that it can't ______ such a disease， so it soon died.
| A．overlook | B．resist |
| C．exist | D．withdraw |
The ______ he drew from his simple experiment is not scientific.
| A．conclusion | B．charge |
| C．promise | D．relation |
The school bus was ______ by a thick fog.
| A．held up | B．broken off |
| C．kept up | D．put off |
You can't ______ of being lonely when you don't make an effort to meet people and make friends with them.
| A．explain | B．complain |
| C．confirm | D．admit |
If we work with a strong will, we can ______ any difficulty, however great it is.
| A．overturn | B．overtake |
| C．overcome | D．overwork |