(a)   are you going to celebrate Halloween? I am going to celebrate it on October 31st

(a)   is your mother going to celebrate her birthday? She is going to celebrate it on November 26th.

(a)   are you going to celebrate Mother's Day? I am going to give a bouquet of flowers to my mother.

(a)   are your parents going to celebrate their anniversary?They are going to have a special dinner.

How are you (a)   celebrate Christmas Eve? I'm going to eat panettone and drink hot chocolate.

What (a)   your mother going to celebrate? She is going to celebrate Independence Day.

How (a)   your parents going to celebrate Valentine's Day?

(a)   are your parents going to celebrate? They are going to celebrate their anniversary.

When are you (a)   celebrate Earth Day? I'm going to celebrate it on April 22nd.