--- You’re quite free now, I think. 

---_______. I have tons of things to do! 

A．By accident

B．On the contrary

C．That’s right

D．I can’t agree more

xiě  yī xiě

写 一 写。   

①我帮妈妈                                                                            。   

②我替爸爸                                                                            。    

③我给奶奶                                                                            。  

④我为大家                                                                            。