Whoever leaves the room last must ______ that all the lights are turned off.
| A．is sure | B．make sure | C．find out | D．look out |
26. The pen I _______ I _______is on my desk, right under my nose.
| A．thought; had lost | B．think; lost | C．think; had lost | D．thought; have lost |
25. He is one of the old scientists who ______nothing about his personal income and fame .
| A．cares | B．care | C．is caring | D．are caring |
24. —— How about camping, just for a change?
—— OK, ______ you want.
| A．whichever | B．whoever | C．whatever | D．No matter what |
23. In face of failure, it is the most important to keep up good state of mind.
| A．a; 不填 | B．不填; a | C．the; 不填 | D．不填; the |
22. —— Can I get the house cheaper?
—— Sorry, it’s ______ my power to sell it any cheaper.
| A．without | B．except | C．beyond | D．out |