A：根
B：茎
C：叶
D：花
计算
(38.56－8.7×2.8)÷0.4=____
看图，读一读，选择适当句子补全对话。
A. Would you like some milk?
B. We can read books at home.
C. Good idea.
D. How is the weather in winter?
E. Why don't you play football?
