______stopping polluting the earth______hope to live in a better environment．
| A．Only to；we Call | B．Only to；can we | C．Only by；can we | D．Only by；we can |
Twentymiles_________alongwaytocover.
| A．were | B．are | C．is | D．seemtobe |
Tenthousanddollars_________alargesumofmoney.
| A．are | B．is | C．were | D．seem |
Veryfew_________hisaddressinthetown.
| A．knows | B．know | C．areknowing | D．hasknown |
Notonlytheworkersbutalsothemachine____notthere.
| A．are | B．were | C．is | D．has |
Iknowthatall ________gettingonwellwithher.
| A．was | B．is | C．are | D．were |