Fill in the blank spaces in the following sentences making use of the best of the five options: If .... one day we would talk about it for weeks

Question 1 Report

Fill in the blank spaces in the following sentences making use of the best of the five options:
If .... one day we would talk about it for weeks

a lion was coming into this room

a lion was coming into tis room

a lion came into this room

a lion is coming into this room

a lion is going to come into this room