选择与下列图片相符的句子。

① ____ A. Eddie can ride a bike.

② ____ B. Kitty can fly a kite.

③ ____ C. Danny can drive a car.

④ ____ D. Alice can make a bird.

Studying in groups is necessary __________ you want to do well in school.

将下列我国主要的牧区与牧区类型、主要畜种连线

A内蒙古牧区              a高寒牧场               （1）牦牛、藏绵羊

B新疆牧区                b温带草原牧场           （2）细毛羊

C青海和西藏牧区          c山地牧场               （3）三河马、三河牛