We ______certain livings as birds not because they have long legs or short legs,but because they all have
feathers.
| A．think | B．classify | C．look | D．divide |
It is so difficult a problem that _____ student in this class _____ work it out.
| A．any, can't | B．no, can | C．every, can | D．no, can't |
.Please make my excuse at tomorrow's meeting. I've got too much work _____.
| A．to do to come | B．doing coming | C．to do coming | D．doing to come |
Our math teacher, however, _____ speak English well.
| A．doing | B．does | C．is doing | D．was doing |
We're leaving at six o'clock , and hope _____ most of the journey by lunch time .
| A．to do | B．to have done | C．to make | D．to have made |
—Ms Lin looks rather a kind lady. —But in fact she is cold and hard on us. You ____believe it!
| A．shouldn’t | B．wouldn’t | C．mustn’t | D．needn’t |