将Are they theirs shoes变为单句

将Are they theirs shoes变为单句 选择题The shoes are _______ (his / theirs) They are () bikes .They are theirs whose shoes are they （ ） shoes are they theirs、them、theirs、they 怎样将一个单句变为复句? 中文意思：are these their suitcases?yes,they are theirs. they are they shoes（改错） 把句子合并为一句：our shoes are clean.theirs are dirty Are they your cousin单句改错 1.The____on the hill are theirs.They feed ____very well.