Sentence Pattern

周四你能来参加我的生日聚会吗？（Zhōusì nǐ néng lái cānjiā wǒ de shēngri jùhuì ma？）：
Can you come to my birthday party this Thursday evening?

Words
1.为什么（wèishénme）：[pron]why
2.东西（dōngxi）：[n]thing
3.为（wèi）：[prep]for
4.生日（shēngri）：[n]birthday
5.聚会（jùhuì）：[n]party
6.准备（zhǔnbèi）：[v]to prepare；to get ready for
7.周四（Zhōusì）：[n]Thursday
8.参加（cānjiā）：[v]to attend
9.行（xíng）：[adj.,v]okay
10.一定（yídìng）：[adv]definitely
11.嘿（hēi）：[inter]hi
12.嗯（èn）：[inter](used to indicate positive response)
13.晚上（wǎnshàng）：[n]evening
14.祝（zhù）：[v]to celebrate
15.快乐（kuàilè）：[adj]happy

Background
On a street in campus, Sun Dawei meets Li Mei holding many things that she bought from the supermarket.

Dialogue One

Lǐ Méi，nǐ wèishénme mǎi le zhème duō dōngxi？
李梅，你为什么买了这么多东西？
Li Mei, why did you buy so many things?

Wèi wǒ de shēngri jùhuì zuò zhǔnbèi.
为我的生日聚会做准备。
Zhōusì nǐ néng lái cānjiā wǒ de shēngri jùhuì ma？
周四你能来参加我的生日聚会吗？
To prepare for my birthday. Could you come to my birthday party on Thursday?

Xíng，wǒ yídìng lái.
行，我一定来。
Sure.

Background
Li Mei is now in the classroom and she sees that Dachuan has come from a far distance. Li Mei comes downstairs and asks him whether he would like to come to her party.

Dialogue Two

Hēi，Lǐ Méi zhème qiǎo！
嘿，李梅，这么巧！
Hi，Li Mei. What a coincidence.

Hēi，Dà Chuān.Shì a！Zhēn qiǎo！Zhè zhōusì néng lái cānjiā wǒ de shēngri jùhuì ma?
嘿，大川。是啊！真巧！这周四能来参加我的生日聚会吗？
Hi, Dachuan. Yes, this is a coincidence. Could you come to my birthday party on Thursday?

Èn……wǒ zhōusì wǎnshàng yǒu kè，bù néng qù le.
嗯……我周四晚上有课，不能去了。
Háishì yào zhù nǐ shēngri kuàilè！
还是要祝你生日快乐！
Oh I'm sorry, I'm busy! I have class this Thursday evening. Still, I wish you a happy birthday!

Méi guānxi.Xièxie！
没关系。谢谢！
No problem. Thanks！