One of the students hasn’t prepared _____ lessons very well.
| A．one’s | B．ones | C．their | D．his |
—Look at these tracks．It __________ be a wolf．
—It needn't be．It be a fox．
| A．must ; could | B．may ; might |
| C．need ; must | D．could ; need |
Travelers_______________ that they should bring their ID cards with them．
| A．have reminded | B．are reminded |
| C．were reminding | D．had been reminded |
O'Neal works hard．He is often seen _______ heavily before his teammates have even arrived at practice．
| A．sweated | B．to be sweated |
| C．sweating | D．being sweated |
—Our holiday cost a lot of money．
—Did it? Well ,that doesn't matter____________ you enjoyed yourselves．
| A．unless | B．in case | C．as far as | D．as long as |
"Who Moved My Cheese?", ____________ is a best-selling book, is written by Spencer Johnson．
| A．which | B．that | C．it | D．what |