About three—fifths of the work ________done yesterday．
A. had
B. was
C. were
D. have
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Not only I but also Jane and Mary________ tired of having one examination after another．
A. is
B. are
C. has
D. have
Neither my father ________ going to see the patient.
A. nor I am
B. nor I are
C. or me are
D. or me is
The number of ________ in our class ________ fifty.
A. student, is
B. the students, are
C. the students, is
D. students, are
Between the two buildings __________a monument．
A. is standing
B. standing
C. stands
D. stand
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