欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

6.That big bird stayed in the tree for a moment and then        (appear) .

5.So far,they        (build) four new schools in that poor area. 

4.We're going to have a discussion about environmental        (protect) .

3.More than six       (million) fish in the lake were dead because of water pollution.

2.I enjoy        (spend) time with my family on weekends.

1.She's going to work in the        (south) part of China next year.

5.如果你打破了這個杯子，你得作出賠償。

You'll have                      it if you break the cup.

4.他們可以參加這項工程來保護環(huán)境。

They can                       the project to protect the environment.

3.我認為拯救地球要從小事做起。

I think that       the earth begins        small things.

2.事實上，它將給所有的海洋生物帶來危害。

           ， it will      danger to all ocean life.