pronouns ,the verb ‘to be’

Replace the words in bold with suitable pronouns .
1.The teacher said , ‘ Give ( the teacher ) your book ’.
2.Where are my shoes ? I can ’t find ( my shoes ) .
3.Put these letters on the table and sort ( these letters ) out .
4.Is Mr.Lee here ? I wish to speak to ( Mr .Lee ) .
Put in the correct form of the verb ( to be ) .
1.They ( )playing football now .
2.Susan ( )late yesterday .
3.A horse ( )drinking water now .
4.There ( )many boxes here yesterday .