Read and choose. (看图，从下面的方框中选择正确的词组标号)

A. wash clothes          B. play the piano    C. walk the dog

D. water the flowers   E. brush teeth         F. make a model plane  

G. take  pictures         H. climb the mountain

1. ____                             2. ____                            3. ____                            4. ____

5. ____                             6. ____                            7. ____                           8. ____

钢的高温回火的温度范围在（），回火后的组织为（）。