_______we are worried about is that air pollution is becoming much heavier in Han Dan.
| A．It | B．What | C．Why | D．Which |
I had a cup of______and two pieces of______this morning.
| A．teas; bread | B．teas; breads |
| C．tea; breads | D．tea; bread |
As is known to us all,_______travels much faster than .
| A．lights; sounds | B．light; sound |
| C．sound; light | D．sounds; lights |
She told him of all her_____and _____ .
| A．hope; fear | B．hopes; fear |
| C．hopes; fears | D．hope; fears |
The rising______did a lot of______to the crops.
| A．water; harm | B．water; harms |
| C．waters; harm | D．waters; harms |
——How far away is it from here to your school?
——It’s about ________..
| A．half an hour’s drive | B．half hours drives |
| C．half an hour drives | D．half an hour drive |