Воткните артикль где нужно:... Moscow is ... big city 1) Mary

Вставьте артикль где необходимо:
... Moscow is ... big city 1) Mary is ... girl 2) She is ... my sister 3) This is ... classroom 4) Is ... paper in ... bag 5) She is in zoo 6) is form tutor in classroom? 7) is your homework easy ? 8) is pen in bag? 9) are you students ? 10) My friend has childtren 11) sportsmen are always in good form 12) children we saw in street are schoolboys