写出所给单词的复数形式subwaytunnelhighwaypierphotoharbourfactorybridgebuildingthis

问题描述:

写出所给单词的复数形式
subway
tunnel
highway
pier
photo
harbour
factory
bridge
building
this

subways,
tunnels
highways
piers
photos
harbours
factories
bridges
buildings
these

subways tunnels highways piers photoes harbours factories bridges buildings these

subways tunnels highways piers photos harbours factories bridges buildings these
楼上 photo 的复数写错了应该加 S .其他的对、