__________ of the land in that district __________ covered with trees and grass.
| A．Two fifths; is | B．Two fifth; are |
| C．Two fifth; is | D．Two fifths; are |
My grandma noticed that the girl ________ a short-sleeved dress, so she gave the girl a new sweater.
| A．has worn | B．was wearing | C．wears | D．is wearing |
According to IQ scores, you are smartest from 18 t0 25, but you're wiser and more experienced _______ increasing age.
| A．for | B．with | C．at | D．of |
A1l flights _________ because of the heavy storm, so we decided to take the train.
| A．have canceled | B．have been canceled |
| C．had canceled | D．had been canceled |
Though ______in a big city, Peter always prefers to paint the beautiful scenes of country life.
| A．raised | B．was raised | C．raising | D．raises |
Please give Jim the schedule for tomorrow's conference when he _______ back. He is to chairthe conference.
| A．will come | B．came | C．comes | D．is coming |