Задайте пожалуйста 4 вида вопросов к этой фразе. "Mike never knows what to buy."

Question

Задайте пожалуйста 4 вида вопросов к этой фразе.
"Mike never knows what to buy."

Answer 1

Mike never knows what to buy, does he? Who never knows what to buy? What does Mike never know? Does Mike never know what to buy or what to sell?