Ответ: 1) 2-2, 3-2

2) 2-under 3- in

3) desk, chair, book, case, blackboard, classroom

Объяснение:

номер 1:

1) 1

2) 2

3) 2

номер 2:

1) on

2）under

3) in

номер 3:

desk chair bookcase blackboard classroom