has still been biult还是has been still built?is still to be built还是 is to be still built?still 放什么位置?

has still been biult还是has been still built?is still to be built还是 is to be still built?still 放什么位置? Dan has been worried all week and he's still worried.这里的still The sleeping baby _____where he was laid.A.has been still laying B.has still laidC.will still lay D.is still laying he has ** been to shanghai ,has he?A.already B.never c.ever D.still John has been working on the essay whole afternoon and he still( Ahas been B does C has DisJohn has been working on the essay whole afternoon and he still( Ahas been B does C has Dis john____ it for two hours,and he`s still watching now 1.has been 2.watching 3.has been watching If he ——,don’tinterrupt him.A.still works B.is still workingC.still has been working D.will still be working he has been writing the composition the whole morning and he still ishe has been writing the composition the whole morning and he still __________,A has been B does C has D is 答案为何选D呢? This method has been proven to be still effective.to be still effective.是动词不定式吗 nothing has been changed,we are still sharing the same feeling,aren't we when and where to build another bridge ___ still unknown A.is B has been The skating marathon has been going for five hours now,and several skaters are still skating Mr Freeman has been to Jiuzhaigou t____ ,but he still looks forward to a third chance HE HAS BEEN WRITING IT THE WHOLE NOON AND HE STILL (IS)..为什么括号内是用IS? Smile is like a bandage.Although the wound has been covered,but heart is still painful. Against as his opinion has been ,he still held opinion 这句话怎改正确? he has been writtingthe composition the whole morningyes and he still _______a has been b does c has d is请说明一下原因 has been