Tom, Jim, David and sam are good friends. They have different jods: a policeman, aworker,afarmer, a farmer and a doctor.
One day,Tom's son broke his leg, and tom took him to the doctor.The doctor's sister is David' s wife.The farmer is not married. He has a lot of good hens(母鸡）。 Jim always buys eggs from the farmer. The policeman sees David every day because they are good neighbours(邻居）。
1:tom is a 2:jim is a 3;David is a 4:sam is a
B你会做下面的数学题吗？
1.Arectangle(矩形） of 4cm long has the same ares（面积）as a square(正方形）of side (边）8cm.Find the perimeter(周长）of the rectangle.____________
2. 45cm rows of square (砖块）are use for a playground.ln each row, there are 32bricks, lf each area of a brick is 0.8平方米，find the area of the playground.______________