more interesting vs. most interesting

English as a Second Language English Teacher Explanations (ESL Tests)
1

English Grammar Tests, Elementary Level

ESL/EFL Test #177 [color=blue]“Comparatives and Superlatives (1)”, question 10

This subject is … than the last one we studied.

(a) most interesting
(b) interesting
(c) more interesting

English Grammar Tests, Elementary Level

ESL/EFL Test #177 [color=blue]“Comparatives and Superlatives (1)”, answer 10

This subject is more interesting than the last one we studied.

Correct answer: (c) more interesting

Your answer was: [color=red]incorrect
This subject is most interesting than the last one we studied.
[size=200]_________________________[/size]

Why don’t we put more intersting than most interesting?pl do explain

2

Because this is a comparison between two things so you need to use the comparative (more interesting) and not the superlative (most interesting).

Here are more examples:
An Audi Q7 is more expensive than a Ford Galaxy.
Skiing is much more interesting than watching German TV.
Jon Bon Jovi are even more popular than the Dutch King.

TOEIC listening, question-response: Could you tell me how to get to the Center Building?