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There are some negative effects in using computer in our life. First of all, using computer in all of important systems, such as military system, banking, health care, so what happen if virus or hackers can attack in to those systems, and make them become unhelpful completely. That can be catastrophe for people on the world. For example, if banking systems are not working, so all of trade deals are canceled or personal information and account will be stolen by hackers or someone. Second, using computer is cause of many health problems. Example, if people work with computer for long time, their eyes, and backs will be tied and hurt.
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Hi Nghiatran and welcome to the forums. You seem to have some problems with plurals and articles. You need to be careful about saying something WILL happen, instead of CAN happen.

There are some negative effects in using computer in our life. First of all, using computer in all of important systems, such as military system, banking, health care, so what happen if virus or hackers can attack in to those systems, and make them become unhelpful completely. That can be catastrophe for people on the world. For example, if banking systems are not working, so all of trade deals are canceled or personal information and account will be stolen by hackers or someone. Second, using computer is cause of many health problems. Example, if people work with computer for long time, their eyes, and backs will be tied and hurt.

There are some negative effects in our lives from using computers. First of all, using computer in all of our important systems, such as the military system, banking, and health care, leaves us vulnerable to so what happen if viruses or hackers that can attack in to those systems, and make them become unhelpful completely useless. I see this as a risk, not a negative effect. That would can be catastrophe for people around on the world. For example, if banking systems are not working, so all of trade deals are canceled or personal information and account information can will be stolen by hackers or someone. Second, using computer can be the is cause of many health problems. For example, if people work with computer for a long time, their eyes, and backs will may become tied and sore hurt.
yes , i have many grammar problems because i have learned Enghish for few months, so can i PM for you when i need your help ? i hope you will me, thank you so much
Students: We have free audio pronunciation exercises.
Hi Nghiatran,

Please use the forums for grammar help, but feel free to PM me if you need any assistance from me as a moderator.
Just need your confirmation on the CA Waste . On the GAM balancing sheet it is coded for the manufacture model number 40Y8116 of the invoice# 1454967-00 ,but on the invoice 1454967-00 it is documented for the manufacture model number 76734NU and the amount is $30.00. Could you please look in to it and let me know for which model number it should be coded. Please help me on the same.
yesterday i was gone to somali and saw my mother lived there and all my relatives which lives before I went there they told me that to move where they live and I didn't agree with them I just evade them and get out where they stayed and someone told me that to united state is nice place to live I think who said this is good idea
Students: Are you brave enough to let our tutors analyse your pronunciation?
Hi,
The first thing you need to do is to divide your writing into sentences. Start each sentence with a capital letter, and end it with a period. Try to avoid any really long sentences.
If you do that and post again, we can give you more advice. OK?

Best wishes, Clive
she is my best friend..very much cute,friendly,loving,caring,funny,helpful,understanding person...we were in the same school but we did not meet each other..then she joined in another school..later i met her for the first time in the tuition class..thereafter we became best friends..had lot of fun together...she is so naughty..talkative...fun loving person...we are friends for the last 9 years..still gud friends and will remain like that..im really lucky to have such a sweet friend...may god bless you...all d best for your future...love you lots dear...