It was a time_______ the killer whales helped the whalers catch the baleen whales.
| A．when | B．that | C．then | D．which |
The company had about 20 notebook computers but only one-third __________ used
regularly. Now we have 60 working all day long.
| A．is | B．are | C．was | D．were |
The __________ of thestudents in that class __________ boys.
| A．majority ； are |
| B．most ； are |
| C．majorities；are |
| D．most ； is |
I never expected you to __________ at the meeting. Ithought you were abroad.
| A．turn around | B．turn on | C．turn in | D．turn up |
All the __________expressed their opinions on the __________ of the world.
| A．expertspresent；situation present |
| B．experts present；present situation |
| C．present experts；present situation |
| D．present experts；situation present |
In the face of __________ failure, it is the most important to keep up __________ good state of mind.
| A．/;a | B．a;/ | C．the；/ | D．/;the |