Question

Fill in the preposition "at,on,in,under,by".
1)They are _ home now.
2)Are they _ school now?
3)Look at the clouds _ the sky.
4)There are a lot of flowers _ the garden.
5) There is a nest _ the roof.​

Answer 1

1) They are at home now.

2) Are they at school now?

3) Look at the clouds in the sky.

4) There are a lot of flowers in the garden.

5) There is a nest in the roof.​