Either plan _____(be) feasible.

Neither of your proposals _____(be) practical.

Some of the milk _____ (have) turned sour.

Some of us _____ ( agree) to the plan.

So far as I know, more than one person _______ connected with the accident.

A. is
B. has
C. are
D. have

Every possible means _______ tried, but without much result.

A. has been
B. have been
C. are
D. is

With the company facing a serious financial situation this year, the staff ______ clearly worried about the news of job loses.

A. is
B. are
C. were
D. was

The worker and poet ______ to the party the other day.

A. is invited
B. was invited
C. has invited
D. invited

She had been saving every cent she had for months, but twenty dollars a week which ______ the total of their income didn't leave much for saving.

A. was
B. were
C. have been
D. has been

More than one student, along with some parents, _______ quizzed for information on the reference book so far.

A. was
B. were
C. have been
D. has been