Question

But last year I ------ (not work ) hard enough for english. ( Fill correct tense)

Answer 1

Answer:

But last year I did not work hard enough for English

Answer 2

Answer:

But last year I didn't work hard enough for English

Explanation:

BECAUSE IN THE SENTENCE IT'S MENTIONED "LAST YEAR" WHICH INDICATES THAT THE SENTENCE IS IN PAST TENSE .