Thank you for your comments. I'm pretty sure what has been going here now. Enjoy your English-learning journey here. I'm out. LOL ^-^
-hhyang(?!);
2013-6-11(#8240979@0)
仅仅是探讨啊：我觉得中间那句似乎时态不对，似应为： i'm pretty sure what IS going on here. 这个完成时重点是强调‘完成’的状态，‘going on’ 是正进行状态。口语中，’IS' 还最好是全句重音所在。
-zbeifly(不是爱风尘似被前缘误);
2013-6-11(#8241029@0)
An on is missing otherwise it is standard English.
-redneck(Cracker);
2013-6-11(#8241102@0)
Correct, but the meaning expressed is slightly different then. As there is a 'now' word at the end of the sentence, its still a little confusing.
-zbeifly(不是爱风尘似被前缘误);
2013-6-11(#8241304@0)