Not having a good ________ of English can be a serious disadvantage to achieving your goals.
| A．protection | B．appreciation | C．command | D．experience |
When she saw a boy fall off his bike, she stopped ___ him.
| A．to help |
| B．helping |
| C．help |
| D．helps |
Would you mind not ___ here?
| A．Smoke |
| B．Smoking |
| C．To smoke |
| D．Smokes |
That is ___ exciting day ___ I will not forget forever.
| A．such; that |
| B．such a; that |
| C．such an;that |
| D．very an; that |
___ volleyball is her main focus, she is also good at tennis.
| A．Since |
| B．Once |
| C．Unless |
| D．While |
It was a nice meal, ___ a little expensive.
| A．Though |
| B．Whether |
| C．As |
| D．Since |