________ everyone here, I wish you a pleasant journey back to your country.
| A．By means of | B．On behalf of |
| C．In search of | D．For fear of |
He commanded that all the gates __________.
| A．should shut | B．would be shut | C．shut | D．be shut |
There is a limit ____ my patience.
| A．within | B．in | C．to | D．with |
How can we ____ all these flies in the kitchen?
| A．get rid of | B．send | C．throw away | D．take |
If you ____ do as I tell you , you ____ go to the party .
| A．can ; shan''t | B．wil l; won''t | C．won''t ; shall | D．won''t ; shan''t |
Li Ling was a diligent boy . He ____ go to school though it was raining hard .
| A．was able to | B．could | C．couldn''t | D．wasn''t able to |