Liu Kai is my classmate. He is a good student and always ready to help others.One day on his way to school，he saw a little girl crossing the road. A ca...
From the cartoons given above, we can see that the doctor is checking the pesticide residues in fruits and vegetables. It wisely reflects the food saf...
I used to idle away my Sundays. But now I have more meaningful thing to do. One day our teacher took us to visit the Welfare House. There lived the or...
I used to idle away my Sundays. But now I have more meaningful thing to do. One day our teacher took us to visit the Welfare House. There lived the o...
