Chinese friends please help me!

Hello Chinese friends!

 I was hoping that someone could help me correct the sentences that I have written in Chinese. I am sure there must be many mistakes :) 

 If anyone could help me it would be greatly appreciated. 谢谢！

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Lesson 86 Improve

我的 汉语 有 进步 吗? Has my Chinese improved?

我的 英语 有 进步 吗? Has my English improved?

他的 表现 进步 了。His performance has improved.

他的 表现 进步 很 慢 了。His performance has slowly improved.

林 先生的 表现 进步 了。Mr. Lin's performance has improved.

他的 听力 进步 了。His listening comprehension has improved.

他的 英语 口语 进步 了。His spoken English has improved.

他的 英语 口语 进步 很 慢 了。His spoken English has slowly improved.

他的 英语 词汇 进步 了。His English vocabulary has improved.

郭 小姐 的 听力 进步 了。Ms. Guo's listening comprehension has improved.

吴 小姐的 英语 进步 了。Ms. Wu's has improved her English.

听说,吴 小姐的 英语 进步 了。I hear the Ms. Wu has improved her English.

王 小姐的 英语 发音 很 有 进步。 Ms. Wang's English pronunciation has improved.

我 怎样 能 进步 汉语 口语 能力? How can I improve my spoken Chinese?

我 怎样 能 进步 英语 口语 能力? How can I improve my spoken English?

我 怎样 能 进步 英语 发音 能力? How can I improve my English pronunciation?

学生们 学习上 进步 很快。 The students have made quick progress in their studies.

一般来说, 学生们 学习上 进步 很快。Generally speaking, the students have made quick progress in their studies.

听说,学生们 学习上 进步 很快。I hear that the students have made quick progress in their studies.

每年 中国的 经济 进步。Every year the Chinese economy improves.

一般来说, 每年 中国的 经济 进步。Generally speaking, every year the Chinese economy improves.

我觉得没有错误  I think there is no mistake.

I am learning English,my Skype: fiadis_candy,hope we can be partners.

他的表现进步很慢（了） don't use "了"here

how can i improve my spoken chinese?怎样提高我的汉语口语能力呢？ you can either use the word 呢 or not,they both all right. here the word "improve" should be translated into "提高“

一般来说, 学生们 学习上 进步 很快。Generally speaking, the students have made quick progress in their studies.

I think it may be perfect to translate into "总的来说，学生们在学习上进步很快“

by the way ,I don't know If you alway use a space between words . I'll tell you ,don't use space , it's not like english .

eg   我的 汉语 有 进步 吗？

the correct one is like : 我的汉语有进步吗？

maybe "improve"can translate in 提高，i think it is better.  

for example:how can i improve my english prononciation   我怎样才能够提高我的英语发音。

improve translate in chinese means:提高，进步，sometimes 提高 is better.

Every year the Chinese economy improves. 中国的经济每年都有增长。

I think it is better to translate "improve" into 增长 in above sentence.