put the following words into plural and translate them
1.a roof
2.a wolf
3.a leaf
4.a knife
5.a child
6.a box
7.a man
8.a woman
9.a dress
10.an ox
11.a rose
12.a mouse
13.a foot
14.a boy
15.a fly
16.a berry
17.a chimney
18.a goose
19.a bear
20.a tea-spoon
21.a tooth-brush
22.a tooth
23.a camel
24.a pear
25.a fence
26.a window
27.a door
28.a cage