Fill in the missing letters(填出下面单词中所缺字母)
bookc________se
c________pboard
Write the plural forms of animals and read them(写出下面动物的复数形式并读一读)
frog ________
hippo ________
sheep ________
goat ________
Write their plural forms(写出下面单词的复数形式)
butterfly ________
tomato ________
telephone ________
sofa ________