()There is no greater pleasure than lying on my back in the middle of the grassland, _____at the night sky.
Every possible means ________ to prevent the air pollution,but the sky is still not very clear.
It is reported that 40 percent of the land in Brazil________covered with trees.
Either the judge or the lawyers________wrong on the case at that moment.
The poet and ______ pianist is going to give us a talk this afternoon.
The silence in the dark building was scaring. No sound and voice____ heard at that moment.