American women usually identify their best friend as someone _____ they can talk frequently.
| A．who | B．as | C．about which | D．with whom |
— Did you stay at the party until the very end last night？
— No，I left as early as was ________ with politeness．
| A．content | B．consistent |
| C．patient | D．Permanent |
They eat only plant foods, and take care to ________ animal products from other areas of their lives．
| A．contain | B．maintain |
| C．exclude | D．Include |
— Could you please explain the assignment for Monday, Miss Smith？
— Certainly. Read the next chapter and come to class ________ to discuss what you’ve read.
| A．preparing | B．prepared |
| C．to prepare | D．to be prepared |
Home is ________ somebody notices when you are no longer there.
| A．that | B．when |
| C．how | D．where |
—Mom！Jack has broken a cup！
—Doesn’t matter. Accidents ________ happen.
| A．should | B．must |
| C．will | D．Shall |