主谓一致
1.The number of people invited ________ (be) fifty, but a number of them ________ (be) absent for different reasons.
2.Two fifths of the land in that district ________ (be) covered with trees and grass
3.Many a foreigner ________ (be) going to climb the Great Wall next weekend.
4.The famous singer and composer ________ (be) going to give us a performance next week.
5.A knife and fork________ (be) on the table.
6.No teacher and no student ________ (be) allowed to go to the lab without permission.
7. Email, as well as telephones, ________ (be) playing an important part in daily communication.
8.Eric is one of the boys who ________ (have) a driving license.
9.A pair of scissors ________ (be) what you need to cut the pictures.
10.Ten minutes ________ (seem) a long time for one who waits.
11.Barbara is easy to recognize as she's the only one of the women who ________ (wear) evening dress.
12.I have read most of Shakespeare's works. The rest ________ (be) difficult to understand, I think.
13.The elderly ________ (be) taken good care of in this nursery now.
14.—Is everyone here?
—Not yet. Look, there________ (come) the rest of our guests!
15.Listening to loud music at rock concerts ________ (have) caused hearing loss in some teenagers.