what day is it today?用It's Monday还是用It's on Monday?

what day is it today?用It's Monday还是用It's on Monday? what day is it today后跟It's Monday.还是Today is monday. what day is it today today is MONday .用 [ ]it,s monday [a what day is it today][b what ,s the time ] ( ) today?It's Monday it's monday today It is Monday today,the s() day of the week. “What( )is it today?""Today is Monday." -_____today?-it's Monday.A:when is it B:How is it C:What day It's Monday.这个句子对不对?还是It's Monday today. It s Monday today.（划线提问）划Monday It's Monday是什么意思