了解英文文化者請入 (續)

None of your options is correct because "to try one's best" is a common phrase which can be seen in dictionaries.

2012-06-18 18:43:35 補充：
At best, you can only use other phrases to replace "try your best".

e.g. push your envelope.

我知最高級容詞後面通常省略有關名詞，但我想知有關名詞究竟是甚麼？

2012-06-20 10:02:28 補充：
Thank you very much.

做得簡洁
Make it simple
Make it good
做得好
做得對
Make it right
make it suret

None of the three is correct. The last word in each of the sentences is redundant.

2012-06-20 00:44:01 補充：
The noun is effort.
You can say "Try with your best effort."
Best in "Try your best" can be considered a noun.
I think "Try your best effort" is acceptable.