A:太阳高度变小
B:受冷气团控制
C:云层的反射作用强
D:大气逆辐射变弱
Jenny learns Chinese many ways,such as watching Chinese movies and reading Chinese newspapers.
用所给动词的正确形式填空。
I____(not know) him two years ago.
When it is fine tomorrow, we____ (go) to the park.
Peter____ (not go) to school yesterday because he ____(be) ill.
When Linda ____ (be) young, she danced very well.