选词填空
[[QOrDeR]]My mother ________ to work.( )
A. walking B. walks C. walk
【小题2】He is ________ years old.( )
A. eighteenth B. eight C. eighth
【小题3】We ________ a happy family.( )
A. is B. are C. am
【小题4】He goes to work by ________.( )
A. a bus B. bus C. buses
【小题5】We like to ________ the animals at the zoo.( )
A. watch B. watches C. watching