Раскройте скобки () 1. it snowed last sunday. (did, when) 2. he cleaned his boots. (who, whose) 3. children went to the park on sunday. (who, where, what)

1) Did it snow last Sunday?
When did it snow last Sunday?
2) Who cleaned the boots? / Who cleaned his boots?
Whose boots did he clean?
3) Who went to the park on Sunday?
Where did the children go on Sunday?
What were the children doing on Sunday?