However _____ they are designed, pens should function as a tool to write with.
| A．differ | B．difference | C．different | D．differently |
_______ beyond words, the businessman agreed to donate some money to help the sick.
| A．Moving | B．Moved |
| C．Being Moved | D．To moved |
You _____ the exam, but you were too careless.
| A．must have passed | B．must pass |
| C．could have passed | D．could pass |
-Are you free tomorrow evening?
-Sorry, I’m afraid I ______a friend off then.
| A．was seeing | B．will have seen |
| C．will be seeing | D．have seen |
_____he said in the lecture has a great effect on me.
| A．What | B．Which | C．That | D．How |
The teacher warned her students ______late for the sports meet next Monday.
| A．not to be | B．to be not |
| C．not being | D．not be |