Most air pollution is caused by the burning of _________ like coal, gas and oil.
| A．fuels | B．articles |
| C．goods | D．products |
Every means ____ tried but without any result.
| A．have been | B．is to be | C．are to be | D．has been |
The population of China ____ larger than that of .any other country in the world.
| A．is | B．are | C．has | D．have |
Over 80 percent of the population of China ____ peasants.
| A．was | B．is | C．would be | D．are |
Every' boy and every girl ____ to attend the evening party.
| A．wish | B．wishes | C．is like | D．like |
Not only my brother but also I ____ good at painting. Both of us ____ good painters.,
| A．are;are | B．am;am | C．ani;are | D．is;is |