Identify the correct sentence.
A) Shopping wasn't fun for me unless I buy shoes.
B) Shopping isn't fun for me unless I bought shoes.
C) Shopping isn't fun for me unless I had bought shoes.
D) Shopping isn't fun for me unless I buy shoes.
The answer is D) because if it uses "isn't" which is present tense, it would need to use "buy" rather than "bought" because "buy" it is also present tense so it would make sense.
