频度表达：on Monday, on Tuesday等介词用法 — 英语填空题
题目
Anna把本周的活动卡按星期整理好：她星期一和星期三去学校操场，星期二在教室画画，星期四和星期五在家读书。请用 on 补全句子：Anna goes to the playground ___ Monday and ___ Wednesday. She draws in the classroom ___ Tuesday and reads at home ___ Thursday and ___ Friday.