IV.
1. 3 6 1 9 8 5 4 7 2
2. 5 7 1 2 3 4 6 10 11 9 8
3.(1) Forty-three dollars (2) Fifty-six eighty-nine / fifty-six dollars and eighty-nine cents.
(3) Sixty-eight yuan
(4) one hundred and ninety sixty four / one hundred and ninety dollars and sixty four cents
(5) ninety pounds (6) twenty-five fifty / twenty-five dollars and fifty cents
(7) seventy-eight pounds (8) seventy-eight seventy / seventy dollars and seventy cents 4.
(1) 直接加s： oranges days friends
(2) 在以s，x，sh，ch 結(jié)尾和部分以o結(jié)尾的名詞后加es：
classes buses boxes foxes
watches brushes tomatoes potatoes
(3) 以輔音字母加y結(jié)尾的名詞去y變?yōu)閕es：countries families babies
(4) 以f，fe結(jié)尾的名詞去f，fe變ves： shelf shelves leaf leaves knife knives
(5) 不規(guī)則變化： children feet teeth men women sheep
5.
That one one It’s those ones ones They’re those They this
1. 3 6 1 9 8 5 4 7 2
2. 5 7 1 2 3 4 6 10 11 9 8
3.(1) Forty-three dollars (2) Fifty-six eighty-nine / fifty-six dollars and eighty-nine cents.
(3) Sixty-eight yuan
(4) one hundred and ninety sixty four / one hundred and ninety dollars and sixty four cents
(5) ninety pounds (6) twenty-five fifty / twenty-five dollars and fifty cents
(7) seventy-eight pounds (8) seventy-eight seventy / seventy dollars and seventy cents 4.
(1) 直接加s： oranges days friends
(2) 在以s，x，sh，ch 結(jié)尾和部分以o結(jié)尾的名詞后加es：
classes buses boxes foxes
watches brushes tomatoes potatoes
(3) 以輔音字母加y結(jié)尾的名詞去y變?yōu)閕es：countries families babies
(4) 以f，fe結(jié)尾的名詞去f，fe變ves： shelf shelves leaf leaves knife knives
(5) 不規(guī)則變化： children feet teeth men women sheep
5.
That one one It’s those ones ones They’re those They this