This is a farm.It is____and warm today.I can see a____and her three children,three____,two____,a____and a____on the farm.There is a____on the left.Behind the farm there are three high____.In the sky there are____and ____.
She arrived early in order to get a good seat.
一个物体只受到两个力的作用,这两个力的三要素完全相同,这两个力( )
下列不符合男女同学进入青春期后的心理变化的是( )
森林、海洋、湿地被称为地球的三大生态系统,其中“地球之肾”、“地球之肺”分别是( )
— Maybe it's _____.