when is your birthday?Where are you from?请问在问句的your之前,什么时候用is 什么时候用are?

When is your birthday? when is your birthday? when is your national When is your birthday? when is your breakfast? when is your birthday? 就画线部分提问.1.Li ming's grandfather is ___sixty_eight____.-------,-------is Li ming's grandfather?2.His blue T-shirtis is ------35dollars.------- --------is his blue T-shirt?3.My birthday is ------October first.-------- --------your birthda When is your birthday?英文翻译 when is your birthday,jeff? When is your winter holiday When is your mother's WHEN IS YOUR BIRTHDAY?(回答) when is your chemistry lesson? when is your schoolday?改错~ When is your birthday on? When is your u__ birthday? when is your chinese class when is your birthday?it is( )