1) I went to my Grandma’s on holiday. 2) I helped my Grandma to dig up potatoes. 3) I went to the river along with Grandma. 4) I played football together with my Grandpa. 5) We went to the amusement park together. 6) We ate ice-cream. Чтобы образовать форму Past Simple правильных глаголов (как to help), надо добавить окончание “–ed”, а у неправильных (как to go) форму надо просто заучить