About your question nei:-Z%C$a,`N4L
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I am doing homework - means you are doing it now (and will continue doing it)%{
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I have been doing homework - means you did homework in the past and you are doing it now.  doesn't mean you will continue to do it (you may or may not)&A3_'~4[r%|B)tBY

*R3Zn/YHI will pick #2 with what you want to say.+P]Oso#o I$p

_-@)fBX*JD八度網上論壇Hope this helps,;YJ*Uk        P3L
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