用所给词的适当形式填空Why( )America andCanana( )(celebrate)Christmas?还有一题：还有一题…How old is your father?(改为同意句）＿＿ ＿＿ ＿＿ ＿＿your father?求你们啦…………
网友回答
do celebrate
What's the age of
======以下答案可供参考======
供参考答案1:
American and Canadian
celebrate
供参考答案2:
celebrate
d,celebrate