Question

His most outstanding contribution was during that war. [Change into positive degree]

Answer 1

No other contribution was as outstanding as his, during that war.

$\blue{Additional\: information :}$

• If the sentence is in positive degree and is affirmative, it'll have the following structure :

• Structure - subject + verb + as (adjective) as + object of comparison.

• Example - Himanshu is as clever as Harshil

• If the sentence is in positive degree and is negative, it'll have thefollowing structure:

• Structure - subject + verb + negative word + so (adjective ) as + object of comparison.

• Example - Himanshu is not so clever as Harshil.

• If the sentence is in comparative degree, it will have the following structure :

• Structure : Subject + verb + adjective + than + object of comparison.

• Example - Himanshu is cleverer than Harshil.

• If the sentence is in superlative degree, it'll have thefollowing structure.

• Structure - subject + verb + the + adjective.

• Example - Himanshu is the cleverest.

Answer 2

No other contribution was as outstanding as his during that war.

Hope this helps you. ..