Not only the USA and Russia but also China ________ manned satellites to circle the earth.
| A．has sent up | B．has been sent up |
| C．have sent up | D．have been sent up |
A few of the young trees in Tangsa can be cut each year for firewood.The rest ________ to grow even taller.
| A．left | B．will left |
| C．is left | D．are left |
Playing football and watching TV ________ both interesting.
| A．were | B．was | C．are | D．is |
Either the Greek or the Australian ________ the boxing competition.
| A．have won | B．has won |
| C．are won | D．is won |
Both of you claim you are right.In fact，either you or he ________ wrong.
| A．are | B．is | C．were | D．was |
Either you or one of your students ________ to attend the meeting that is due tomorrow.
| A．are B | B．is | C．have | D．be |