Decide whether each sentence below is punctuated correctly. If the sentence needs additional commas, indicate where the commas should be placed. Did you see the movie that I saw yesterday? The sweater that I left at school was a gift from my mother. We should not buy grapes which scientists say are poisonous to dogs.

Respuesta :

1. did you see the movie that i saw yesterday? no change
2. the sweater i left at school was a gift from my mother. no change
3. we should not buy grapes, which scientists say are poisonous to dogs. comma after grapes.

Answer:

c

c

a

Explanation: