17. Mother ... dinner by 2 o`clock yesterday. a. had cooked b. cooks c. will cooked d....

Question

17. Mother ... dinner by 2 o`clock yesterday. a. had cooked b. cooks c. will cooked d. cooking

Answer 1

Прошедшее время, а).
17. Mother had cooked dinner by 2 0'clock yesterday.

Answer 2

Mother had cooked dinner by 2 o'clock yesterday