The factory ____ the students visited last week is the one ____ I have worked for thee years．
| A．that; which | B．when; in which |
| C．/; where | D．which; that |
of the land in that district covered with trees and grass.
| A．Two fifth；is | B．Two fifth；are |
| C．Two fifths；is | D．Two fifths；are |
He is the only one of the students who a winner of scholarship for three years.
| A．is | B．are | C．have been | D．has been |
The number of people invited ____________ fifty, but a number of them __________ absent for different reasons.
| A．were; was | B．was; was | C．was; were | D．were; were |
Neither Tom nor Jack and I ____ his students.
| A．are | B．am | C．is | D．was |
The League secretary and monitor________asked to make a speech at the meeting last week.
| A．is | B．was | C．are | D．were |