Please correct me sentences.

I learned some grammar from a movie and I fill out the these sentences.
Please correct my grammar. I want to make sure that my grammar is correct.

*Their nationality difference won't matter.
*It will not matter their nationality difference.

(I am not completely sure what you mean, but you could try the following)

It will not matter that their nationalities are different

or

It will not matter that they have different nationalities

*It doesn't matter whether I have money or not.

This is fine.  You could also try:

It doesn't matter if I have any money or not

*I'm sorry if I'm bothering you

Fine

*I would might stay here until next April. I'm not sure......

*I was be able to enter the membership.

I was able to become a member

or you could say

I was able to join

*I'll be able to get a job because my friend introduced to me to the owner.

*I must be able to speak English if I want to apply the job.

I think it is better to say:

I need to speak English to apply for this job

*I've been able to speak English fluently lately.

Fine but it would probably be better to say

My English has improved lately

or

I have been able to speak English more fluenty lately


*I'll have to hand in my homework tomorrow.
I'm going to have to call my mom.

Fine

*I hope you will do well.

Fine

*Is this what you want?

Fine

*It seems to rain.

It seems like it's raining

*She seems angry because I ate her chocolate without asking.

Fine

* It's going to be a happy moment.

(Not sure exactly what you mean)

*You should have asked me. I could have helped you.

Fine

*You could have accepted the plan if you had had enough time.

Fine

*Why didn't you accept the plan? You could have had got a good opportunity.

*I'm starting to look like old.

*I'm getting bored to live here.

I'm getting bored living here

or

Living here is getting boring


*You'll eat only this? ----These are fine for me.

You will only eat this?

or

Is this all you are eating?

(These have different meanings and I am unsure which you mean)

I don't want to still be alone (Or I don't want to still be lonely)

 

I have many friends in college, many others in my district, and a big lovely family, but I still feel lonely. I always love to stay in a calm, quiet place to live and think.  Maybe this is why I love the moon and the sky at in the night.  One day, 3 years ago, I stayed for more than 5 hours, looking at the sky and speaking with the moon about everything I thought about at that time (or during that time).  Maybe I need love nowadays.  I think that will make a difference.

Hello Brief refers to time. For example "I was there briefly" - means I was only there for a small amount of time. "I will give you a brief explanation" - means I will not take a long time giving you the explanation. Short really means the opposite of tall. For example "He is short" if he is only 4 feet tall. It can be used more generally to mean small. "I gave a short answer" - means I gave an answer that was not very long. Short can also be used for time. "I will see you in a short amount of time" - means I will see you in a small amount of time. You can also say "I will see you shortly". People use "shortly" to mean "soon" but it is not the same as "briefly" "I will see you briefly" means I will see you for a short amount of time "I will see you shortly" means I will see you soon Hope this helps!