Lesson 13
Ⅰ、1、vacation
2、afraid
3、gentle
4、sofa
II、BACCB ABADB
III、ACB
Ⅳ、1、Dogs and cats.
2、Budgies and parrots.
3、Feed the pet. Give it water. Keep its house clean. Play with the pet.
Give the pet lots of love.
Lesson 14
Ⅰ、CAADB
Ⅱ、1、laid 2、enemies 3、shook
4、funny 5、well 6、larger
Ⅲ、CDD
Ⅳ、1、F 2、T 3、in danger
4、its head 5、human beings
Lesson 15
Ⅰ、BAADA
Ⅱ、1、danger 2、instead of 3、scare;scared
4、feeds 5、through
III、DBAC