Question

Fill in the blank with the most appropriate word.
_____ you leave the letter on the table, my sister will post it for you.

• A. Unless
• B. If
• C. Wherever
• D. Even though

Answer 1

Answer: (B)

If

The context refers to a condition where something will happen only after something else happens.
The conjunction 'if' in option B is correct as it indicates a condition where something will happen only after something else happens.
Option A 'unless' is incorrect as it means 'except if'.
Option C 'wherever' is incorrect as it means in every case.
Option D 'even though' is incorrect as it means although.
So, option B is correct.