Cho đẳng thức 4 x 2 - 7 x + 3 x 2 - 1 = A x 2 + 2 x + 1 . Đa thức A là đa thức nào sau đây?

A. 4x + 1 

B. 3x – 1 

C.  4 x 2 + x – 3  

D.  4 x 2 – x – 3  

Fill in the blanks with the words from the boxLinda and Bing are close friends. They often (1) ________ to the movie theater at the weekend. They (2) ___________ go to the zoo. They also have a (3) __________, but not always. They go (4) ________ the countryside. They always bring a (5) ________, some water and a camping stove. Sometimes, (6) ________ camp overnight. They like camping very (7) ________. They can enjoy the fresh air and the (8) ________ beauty.

Question 4: