Поставить предложения в актив present s.,pres.cont.,past s.,future s.,past cont.,fut.cont. 1)том и сем делают свое . 2)моя старшая сестра пишет доклад. 3)моя бабушка печет пирог.

Pr.S - Tom and Sam do their homework. My elder sister writes the report. My grandmother bakes the pie. 
Pr.C - Tom and Sam are doing their homework. My elder sister is writing the report. My grandmother is baking the pie.

P.S - Tom and Sam did their homework. My elder sister wrote the report. My grandmother baked the pie. 
P.C - Tom and Sam were doing their homework. My elder sister were writing the report. My grandmother were baking the pie.

F.S - Tom and Sam will do their homework. My elder sister will write the report. My grandmother will bake the pie. 
F.C - Tom and Sam will be doing their homework. My elder sister will be writing the report. My grandmother will be baking the pie.