阅读下列短文，完成任务A和B。
Introduction  to  invitations（邀请活动简介）
Invitations are important. In the west, people often give invitations to their friends. Most invitations are for dinner or a birthday party.
When people accept（接受）an invitation to a dinner or party, they usually ask what they can bring. They often take flowers, chocolates, or other presents. People usually take a birthday present to a birthday party.
After a dinner or birthday party , most people telephone the host（主人）to say “thank you”. Some people write a short thank-you note or send an e-mail to the host.
任务A：Mary想邀请James参加生日晚会，请将以下各项活动按正确的顺序排列，把序号填入相应的横线上。
A. Mary and James enjoy the party together.     
B. James accepts the invitation.
C. James writes a thank-you note.             
D. James brings a birthday present.
E. Mary invites her friend James to her birthday party.
. 　E　    1.____     2. ____    3.____  4 .____
任务B：请你帮James 给Mary 写一句表示感谢的话。
5.                                   .