nicer vs nicest vs much nice

[Mirra]

English Grammar Tests, Elementary Level

ESL/EFL Test #45 "Basic English Expressions", question 8

My boss is very ..........

(a) nicer
(b) nice
(c) nicest
(d) much nice

English Grammar Tests, Elementary Level

ESL/EFL Test #45 "Basic English Expressions", answer 8

My boss is very nice.

Correct answer: (b) nice
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I want to get an explanation on any of the test questions, please.

Mirra

[Beeesneees]

nicer - comparative. My boss is nicer than someone else.
nicest - quantitative. My boss is nicer than all the other bosses.
much nice - poor English. You would never describe something as 'much nice'.

Nice (the correct answer). My boss is a nice boss, but there is no comparison being made to any others.

I hope this is what you meant.
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"Inside every old person is a young person wondering what happened."
Terry Pratchett