Question

2. Spot the error and correct the following sentences.
(e) A flock of birds were flying overhead.​

Answer 1

Answer:

A flock of birds was flying overhead. Collective nouns such as a herd of, a collection of, a group of, a flock of, etc. are singular, so 'is' will be the verb in use. Note that not all collective nouns are singular.

Answer 2

1. A flock of birds was flying overhead .