Draw a square, which should be 70 cm by 70 cm. In the middle, draw a house. Next to the house, draw one more house. The houses should not be big. You have to draw other things in the picture. On the top left side, there is a bird. On the top right side, there is the other bird. In total there are two birds in the picture. On the bottom left side there is a waste basket. On the bottom right side, there is a bucket. What is in the middle? It is houses. At the center of the house on the left, there is a big black dot. There is a bench in front of the house. On the bench a boy is sitting. What is in front of the houses? A boy is.

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Would you check the use of the prepositions? Are the expressions above grammatical? If there are any errors, correct them,please.
Do we have to use 'at' or 'on' before 'the bottom left siede'? Can we use both prepositions?

Thank you for using the Jiskha Homework Help forum. You might use either "at" or "on" depending.