What helping verb is used when putting ANY reflective verb in the past tense? PLEASE HELP

Could someone who speaks french look over some text i wrote to see if it is correct? my meal: je vais manger les 4 morceaux de poulet mccroquettes et le biscuit de l'omrm aux morceaux de chocolat. je vais boire l'eau dasani. le repas contient 330 calories.my friends meal: mon amie va manger le wrap-éclair au poulet grillé avec sauce chipotle et le biscuit de l'omrm aux morceaux de chocolat. ils vont boire le jus d'orange minute maid. le repas contient 570 calories.i am ordering items from mcdonalds and stating how many calories are in each meal.

Cet éclair-ci that eclair 2. cet éclair-là this bread 3. ce pain-là these cakes 4. ce pain-ci those cakes 5. ces gateaux-ci this eclair 6. ces gateaux-là that bread

Write a radio advertisement for a french product. it can be real or fictional but must be from a french speaking country. examples: cheese,cars,perfumes,clothes