英语补全对话,
B:Hello ,this is Bill.
S;Hello,this is Sally.The summer vacation is coming._______________?
B:I haven't decided yet .How about you?
S:I am going to London.I have dreamed of visiting that place for a long time.
B:__________________?
S:Beacause there are many places interest there ,such as the Big Ben ,London Eye ,the Olympic Stadium and so on.
B:That 's great.____________?
S.My parents.Would you like to go with us?
B:______________?I have planed to be a volunteer to help the people in Ya'an.
S:____________________.Good luck to you!
B:Thanks.