Please be s___!It's not a joke.

Please be s___!It's not a joke. but i don't beleave it will be come true.because it's a joke Don't be serious sbout it.It's just a joke You are it's just a joke whose bike is this?it's not mine.it's___ A.someo Don not be s .please say it loudiy 咋填?Please s___ talking! It's time for class. No,It is not a joke!什么意思? You think it's a joke,then that it is. It's not polite to s___ at your parents. To be or not to be,It's a question! To be or not to be,It's a question