19．There are six ____ and fifteen ____ in this workshop.

　A．mans; womans

　B．men; women

　C．men; womans

　D．mans; women

18．There are many ____ on the hill.

　A．sheeps

　B．sheep

　C．sheepes

　D．sheep's

17．The leaning tower is about 180 ____ high.

　A．feet

　B．foot's

　C．foots

　D．feets

16．Jack went to have two ____ pulled out yesterday afternoon.

　A．tooths

　B．tooth

　C．teeth

　D．toothes

15．The cat caught two ____ last night.

　A．mouses

　B．mice

　C．mouse

　D．mices

14．Whose ____ are these?

　A．photo

　B．photoes

　C．photos

　D．photoss

13．There are lots of ____ in the basket on the table.

　A．tomatos

　B．tomato

　C．tomatoss

　D．tomatoes

12．In ____ time, those mountains will be covered with trees, too.

　A．few years

　B．a few years'

　C．a few year

　D．a few year's

11．There is a ____ over the river.

　A．ship

　B．boat

　C．bridge

　D．village

10．There are a lot of ____ down there but hardly any ____ .

　A．sheeps; people

　B．sheep; people

　C．sheeps; peoples

　D．sheep; peoples