Question

A plane was forced to make an emergency landing after it was hit by a _ of birds

Answer 1

Answer:

flock of birds ............

Answer 2

Answer:

A plane was forced to make an emergency landing after it was hit by a flock  of birds.

Explanation:

Collective nouns are the nouns which are used for the group or collection of the people or things. It always denotes the people or things in the plural. It symbolizes a group of things considered collectively. In the above sentence, 'flock' is the collective noun, because the group of birds is known as 'flock'.