1. An old saying goes,"A dog is a man's best friend. "And a dog can also be a child's best friend,_______ if that child is left behind with grandparents.
Agenera
Bspecially
Cusually
Despecially
2. 第(6)选()
A vegetables
B chickens
C gardens
D houses
1. 单句改错,选出括号里的错误选项,并改正。[A](Passing) [B](each level) will , you [C](spend) you about [D](an) hour.