Seeing this,some comrades became very worried.这里的Seeing this做什么成分?

Seeing this,some comrades became very worried.这里的Seeing this做什么成分? I am seeing some one? I am seeing some one? 选择：I think this flim is ___ worth ___.A.very seeing B.well seeing.为什么? it seems to some experts that there are only three commonly-used video websites in this area:56.com,YOuku.com,Tudou.com,and they_____90% of the market.A.make up B.put up C.set up D.take up Seeing this sentence is an idiot 的中文意思 .How about seeing a film this evening?---_______________________. I look forward to seeing you later this year. Different people have different ____(fell) zfter seeing this film seeing this,the little boy couldn't help____（笑）. We have----(little) snowfall this year than year.The film Mickey is very----.Children all over the world are-----in seeing it.Look!Some-----(mouse) are eating rice over there.A tortoise has four leg,but it moves very----(slow) This friendship need some This friengship needs some This firendship needs some Check out this collection of some of the best websites and resources Microsoft.com has to offer.我单位的邮箱总是出现这句英文是什么意思. 9.i_what this has to do with the argument.a.failde to seeing b.failed to see c.confused with seeing d.confused about seeing It seems to some experts that 56.com,youku.com and tudou.com____90% of the video market in this area.答案用make up 个人认为是用take up i feel like seeing a film this evening.这里的this evening是什么时间状语吗?