Before John won the lottery, he was a poor locksmith.
A) won the lottery, he was a poor locksmith.
B) had won the lottery, he was a poor locksmith.
C) won the lottery, he had been a poor locksmith.
D) won the lottery, he were a poor locksmith.
E) wins the lottery, he was a poor locksmith.
in different forums i have found that before can be linked with simple past or past perfect
so a can be answer
A) won the lottery, he was a poor locksmith.
B) had won the lottery, he was a poor locksmith.
C) won the lottery, he had been a poor locksmith.
D) won the lottery, he were a poor locksmith.
E) wins the lottery, he was a poor locksmith.
in different forums i have found that before can be linked with simple past or past perfect
so a can be answer












