Question

 If every body ----- [work] hard ,our country will be prosperous .[Re-write in simple present tense ]​

Answer 1

Answer:

if every body works hard ,our country will be prosperous

Answer 2

Answer:

If everybody works hard our country becomes prosperous..

Or if you have to change the only word given in bracket then it will be

If everybody works hard our country will become prosperous...

Explanation:

Simple present tense rule = Verb 1st form +s/es