Putonghua #4: <strike>Yi dian geng duo..practice   </strike>更多一点学习（geng duo yi dian xue xi）

Ren shi ni hen gao xing. <strike>Wo gao xing xue xi Putonghua</strike>(我喜欢学习普通话wo xi huan xue xi putonghua). Wo yao zhi dao geng duo. <strike>Wo qi dian ban zai xue xi he wo de lao shi yiqi</strike>.(我七点半和我的老师一起学习 wo qi dian ban he wo de lao shi yi qi xue xi)

How do I say I need to practice?:

Ni jin tian zai zuo shen me? ( is this correct Mandarin?)   yeah ,great! it's a right sentence.

Qing, correct me & translate!

Putonghua #4: <strike>Yi dian geng duo..practice .   </strike>    geng duo yi xie lian xi 更多一些练习

Ren shi ni hen gao xing. <strike>Wo gao xing xue xi Putonghua</strike>.Wo <strike>yao</strike> zhi dao geng duo. <strike>Wo qi dian ban zai xue xi he wo de lao shi yiqi.
</strike>Ren shi ni hen gao xing.  认识你很高兴 Wo  xue xi Putonghua hen kai xin.我学习普通话很开心。Wo xiang zhi dao geng duo. 我想知道更多。wo zai qi dian ban  he wo de lao shi yi qi xue xi.我在七点半和我的老师一起学习。

 I need to practice?:
wo xu yao lianxi 我需要练习

Ni jin tian zai zuo shen me? ( is this correct Mandarin?)
yes,it is. 你今天在做什么？

Putonghua #4: <strike>Yi dian geng duo..practice</strike> 更多一点练习

Ren shi ni hen gao xing. Wo gao xing xi huan xue xi Putonghua. Wo xiang <strike>yao</strike> zhi dao geng duo. Wo qi dian ban he wo de lao shi yiqi <strike>zai</strike> xue xi .

认识你很高兴 （也可以说“很高兴认识你”）。我喜欢学习普通话。我想知道更多。我七点半和我的老师一起学习。

How do I say I need to practice?:

Ni jin tian zai zuo shen me? ( is this correct Mandarin?)
你今天在做什么？

Qing, correct me & translate!