1. 听 Nikki 创作的爱心小诗，选出听到的单词，并将其写在横线上。
Love Our Little Friends
A little (1) (box, boss) keeps little birds safe.
A smart (2) (fox, fog) will not chase.
In the green (3) (yard, card), animals play.
Sweet (4) (yellow, fellow) birds sing all the day.
We do (5) (zero, hero) harm to little friends.
Our love for nature will never end.

1. (1) box (2) fox (3) yard (4) yellow (5) zero