第一课时 (Section A 1a—2d)

◢ 知识巩固 ◣

I 根据汉语提示及句意填写单词。

1. The children are picking up the 　　　　 (垃圾) in the park.

2. Children 　　　　 (打扫) the rooms in the old people’s hom（试读）...