Week from August 21st to 25th Second Science EXERCISES ABOUT SIMPLE PAST TENSE OF IRREGULAR VERBS. Week from August 28th to September 1st. Week from September 4th to 8th Week from September 11th to 15th Week from September 18th to 22nd. Week from September 25th to 29th Week from September 25th to 29th Week from October 2nd. To 6th Week from October 9th to 13th EXERCISES Week from October 16th to 20th Week from October 23rd to 27th