Explanation

The correct phrase is “different from”, used to compare two things.

Correct sentence:

"My car is different from yours in make and colour."

Explanation

The preposition “for” indicates the purpose of the visit.

Correct sentence:

"The forest officer visits our college for further plantation drive."

Explanation

The correct phrase is “awareness about”, meaning knowledge or understanding of a topic.

Correct sentence:

"We should develop awareness about environmental cleanliness."

Explanation

The phrase “not possible without” indicates that something cannot happen unless support is given.

Correct sentence:

"This would not be possible without your support."

Explanation

The correct phrase is “in the dire need of”, meaning experiencing a serious lack of something.

Correct sentence:

"The community library is in the dire need of some quality books."

Explanation

“Won’t give the test today” correctly expresses a future negative action.

It clearly states that the teacher will not conduct the test today.

Explanation

The correct structure after “I don’t know” is “how to + verb”.

“How to drive a car” is the only grammatically complete and meaningful option.

Explanation

“Busy grazing grass” is the correct grammatical structure (busy + -ing form).

“Grass” is generally uncountable, so “grasses” is incorrect here.

Explanation

“Looks very tired” is the only grammatically correct and meaningful option.

It properly describes the appearance or condition of the old man.

Explanation

“Themselves” is the correct reflexive pronoun for children (plural).

The phrase “really enjoying themselves” is grammatically correct and complete.