tại sao bn tự ghi tự trả lời vậy

I chyển sang câu bị động ai nhanh mk tick cho nhớ tick mk với nhé

37. Why didn’t they help him?

Why wasn’t he helped?

38. How many games has the team played?

How many games have been played by the team?

39. Where do people speak English?

Where is English spoken?

40. Who are they keeping in the kitchen?

Who are being kept in the kitchen?

41. How can they open this safe?

How can this be opened safe?