Question

You must finish your project 5'oclock positively fill in the blanks

Answer 1

The correct preposition that can be filled in the blank of the given sentence is ‘by’.

Here the meaning of ‘by’ is ‘Not later than’.

So the sentence should be written as shown below:

You must finish your project by 5'oclock positively.

However, other prepositions such as ‘until’, ‘at’, ‘before’, etc. can also be used.