Teacher/Leader: In, at
Class/Group: In, at


Teacher/Leader: in - with months and years
Class/Group: in - with months and years


Teacher/Leader: at - with time
Class/Group: at - with time


Teacher/Leader: He was born in March.
Class/Group: He was born in March.


Teacher/Leader: They lived here in 2001.
Class/Group: They lived here in 2001.


Teacher/Leader: When shall we meet?
Class/Group: When shall we meet?


Teacher/Leader: Let's meet at two.
Class/Group: Let's meet at two.


Teacher/Leader: When do they leave?
Class/Group: When do they leave?


Teacher/Leader: They leave at six.
Class/Group: They leave at six.


Teacher/Leader: In, at
Class/Group: In, at


Teacher/Leader: in - with months and years
Class/Group: in - with months and years