1was he in London last Christmas? Yes, he was
2 were they in the United States at the end of May? Yes, they were
3 Was Easter at the end of April? Yes, it was
4 Did they decorate the Christmas tree on the first of December? Yes, they did
5 Could they swim? Yes, they could
6 Did she send twenty cards last Sunday? Yes, she did
7 Did he put the books on the table? Yes, he did
9 Do they always celebrate Mother's Day? Yes, they do
10 Does she like to send Christmas cards? Yes, she does