Solution:
Let's fill in the blanks using the provided words to make the sentences make sense and be grammatically correct.
- Billy is fat. He has cakes and chocolate for breakfast. He has pieces and jam for lunch. (It makes sense to have 'pieces' of cake and jam for breakfast).
- Yesterday Billy ate two boxes of chocolates, (You can have 'boxes' of chocolates).
- fifteen bags of sweets. He (You can have 'bags' of sweets).
- doesn't eat cabbage and carrots. Billy doesn't like to run and jump. He can't swim. Billy is sad. Can you help my friend Billy? (The words 'run', 'can't', and 'is' fit logically and grammatically in these sentences).
Answer: pieces, boxes, bags, run, can't, is