It is believed that life in the twenty-first century is much easier than ________ .
| A．that used to be | B．it is used to |
| C．it was used to | D．it used to be |
They quarreled lastnight, but soon __________，talkingand laughing happily.
| A．made up | B．made for | C．made out | D．made off |
Putting in a new window will __________ cutting awaypart of the roof.
| A．include | B．involve | C．contain | D．comprise |
All classes of his school are __________ with modern teaching __________.
| A．equipped ； equipment |
| B．equipped ； equipments |
| C．equipping ； equipments |
| D．equipping ； equipment |
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 |