Yang Liwei_____about twenty-one hours in_____around the earth fourteen times.
| A．took; going | B．spent; going |
| C．cost; to go | D．took; to go |
Who is ___________ man under the tree?
| A．a | B．an |
| C．the | D．/ |
More treesto protect the environment.
A、must plant
B、must be planted
C、should plant
Not only his parents but also hevery friendly to me.
A、are B、is C、be
Pleasethe papers to others.
A、give out B、look out C、find out
He can’t put offthe plan.
A、make B、making C、to make