Объяснение:
1)When our students knew this rule?
2)Who has already learned these rule?
3)What our students have already learned?
4)What our students have already done?
5)Whom students have already learned this rule?
Объяснение:
1)When our students knew this rule?
2)Who has already learned these rule?
3)What our students have already learned?
4)What our students have already done?
5)Whom students have already learned this rule?