.In the United States, bus travel doesn't cost much as train travel, ?
| A．don't they | B．does it | C．do they | D．doesn't it |
Would you please ______ write on the textbooks?
| A．don't | B．not to | C．not | D．to not |
Tommy had his big brother _____ his shoes for him.
| A．to tie | B．tie | C．tied | D．tying |
Does your new secretary ____ short hand?
| A．know to take | B．know how to take | C．know how take | D．know how taking |
Your flat needs _____ . Would you like me it for you?
| A．to clean, to do | B．cleaning, doing | C．cleaning, to do | D．to be cleaned, doing |
_____their students, the famous teacher came into the hall.
| A．Followed | B．Followed by |
| C．Being followed | D．Having been followed |