People often have this belief _______ development is bad for the environment, but this does not have to be true.
| A.whether | B.what |
| C.that | D.how |
The population of China ________ 1.3 billion,and 80% of the population________farmers.
| A.are; is | B.is; is |
| C.is; are | D.are; are |
Every possible means ________ to prevent the air pollution,but the sky is still not very clear.
| A.were using | B.have used |
| C.has been used | D.was used |
It is reported that 40 percent of the land in Brazil________covered with trees.
| A.is | B.was | C.are | D.were |
Either the judge or the lawyers________wrong on the case at that moment.
| A.is | B.are |
| C.were | D.was |
The poet and ______ pianist is going to give us a talk this afternoon.
| A.an | B.a | C.the | D./ |