Choose the correct word tor each of the following sentences.Either of the tools (are, is) used to repair this machine.
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Not only the workers but also the manager (is, are) against the decision.
A. is
B. are
These pairs of shoes (is, are) not of the same color.
A. is,
B. are
It seems to me that neither of the business partners (is, are) entirely right on any issue.
A. is
B. are
Some of the signs of failure (are, is) already clearly visible.
A. are
B. is