The buildings were b___ last year by the workers.

The houses,building last year were destroyed by the earthqua interviewed the workers there last year. the trees were cut down by the workers.the trees The workers built the bridge last year.改为被动语态 Unluckily,five coal workers were( )under the ground last nig the ___caused by carelessness__yesterday,Many workers were k The Christmas presents were ------- in the attic last year.( The workers were made to finish the work at once by the mang The workers built the bridge last year.(对划线部分提问）划线部分 ：built The new buildings ____（build）in our school last year The new buildings ______（build）in our school last year last year,the area was struck by floods,from____effects the