Question

This is an important examination.All the students of class X know it (join into single sentence using a noun clause​

Answer 1

Answer:

All the students of class X know that is is an important examination.

Explanation:

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Answer 2

Answer:

That this is an important examination all the the students of class X know it.

Explanation:

Noun clause is a type of dependent clause in a complex sentence that works as a noun. A noun clause is usually introduced by an introductory word such that, whether, what, who, whoever, whose, where, why, etc.