About 20 percent of the work ____done yesterday.
A.are |
B.is |
C.were |
D.was |
Ten thousand dollars _____quite a large sum.
A.are |
B.is |
C.were |
D.have |
This is one of the best novels that ____appeared this year.
A.have been |
B.has |
C.had been |
D.have |
Most of his spare time ____spent in reading.
A.are |
B.were |
C.was |
D.have been |
Either you or I _____going to the teachers‘ office after class.
A.am |
B.is |
C.are |
D.will |
Tom as well as two of his classmates _____invited to the party.
A.was |
B.were |
C.have been |
D.had been |