Select the best word or words for the blank in the following sentence.
The medicine that is responsible for curing a host of deadly diseases ___________ in dangerously low supply.

Question

Quizplus · Accepted Answer

A subject must agree with its verb in number. This means both need to be singular or both need to be plural. The subject in this sentence (the medicine) is singular so we need a singular verb (is).
The trap here is that the subject (the medicine) is separated from the verb by a plural noun (diseases). To avoid this trap, simply find the subject and the verb and make sure they agree. Ignore everything else.
The medicine that is responsible for curing a host of deadly diseases is in dangerously low supply.

Select the Best Word or Words for the Blank in the Following