1. If you give me a piece of rice cake, then I will not eat you.

2. If you give me a rice cake, then I will not eat you.

3. If you give me some rice cake, then I will not eat you.

4. If you give me some rice cakes, then I will not eat you.

5. If you give me rice cake, then I will not eat you.

(Which expressions are grammatical?)

1 answer

1- 4 are okay.

5 would not be used.