II. Write questions for the underline words.
 22. She called the firemen because her cat stuck in the tree.

 23. I bought two kilos of oranges.

 24. John wrote about his grandparents.

 25. I watched a very good film on TV last night.

 26. She made some coffee for her mother.

 27. Susan gave the money to her brother.

 28. We went to school by bus.

 29. I was tired yesterday evening because I worked very hard.

 30. Mary invited a lot of people to party.

 31. No, we didn’t go to the cinema last night.

 32. Shakira grew up in Colombia.

Cho Hình thang ABCD (AB//CD), có E,F,I lần lượt là trung điểm của AD,BC,BD C/m a) E, F,I thẳng hàng b) tính EF biết AB = 5cm, CD = 7cm ( giải theo đường trung bình của tam giác)

Cho Hình thang ABCD (AB//CD), có E,F,I lần lượt là trung điểm của AD,BC,BD C/m a) E, F,I thẳng hàng b) tính EF biết AB = 5cm, CD = 7cm

Rút gọn:
a, (2x-1)^2 -2(2x-1)(x+3)+(x+3)^2
b, (4x+3)^2-2x(x+6)-5(x-2)(x+2)-10
c,(3x+1)(9x^2-3x+1)-((x-2)(x^2+2x+4)
d, (2x-1)^3-4x^2(2x-3)