Question

If You do not attend the class, you will not be allowed to sit in the examination.
PLEASE convert it into SIMPLE SENTENCE not in COMPOUND. ​

Answer 1

Answer:

Unless you attend the class, you will not be allowed to sit in the examination.

Explanation:

'Unless' is used to introduce the case in which a statement being made is not true or valid

Answer 2

Answer:

unless you attend the class.you will not allowed to sit in the examination.