Question

Choose the most appropriate option to complete the given statement:

Air _______ mainly of nitrogen and oxygen. (consist)

• A. consists
• B. is consisting
• C. have consisted
• D. consisted

Answer 1

Answer: (A)

consists

Option A is the correct answer because ‘consists’ is used when talking about the present tense, and is used in singular forms.

Option B is incorrect because ‘is consisting’ is used or followed by ‘to/of, for example air is consisting of...

option C is incorrect because have consisted is the past tense, while statement is in the present tense.

Option D is incorrect because ‘comsisted’ Is past tense.