The students were taking graduation photos on the sports ground, ______ school uniforms.
| A．all of them wore | B．all wearing |
| C．all of whom wearing | D．all were wearing |
What you said just now____ the matter we are discussing.
| A．have something to at | B．has something to do with |
| C．had something to do with | D．has been something to do with |
What we need____ good textbooks.
| A．is | B．are | C．have | D．has |
That they were wrong in these matters ____ now clear to us all.
| A．is | B．was | C．are | D．all |
Large quantities of water ____ for irrigation.
| A．is needed | B．has -needed | C．are needed | D．need |
Between the two rows of trees ____ the teaching building.
| A．stand | B．stands | C．standing | D．are |