自然土壤是由（）、（）（固相），（）（液相），（）（气相）三相物质组成。
参考答案：矿物质；有机质；土壤水分；土壤空气
—How was your holiday?
—__________.[ ]
A. I went by train
B. Thanks
C. It was fun
Today is T___________, September ___________. I go to school.
Yesterday was ___________, ___________ ___________. I ___________ to school.