I.Find ten mistakes in the test than correct them:(giải thích vì sao từ đó lại sai)
    At school we often has four classes in the morning (in the afternoon we aren't go to school). After each class we have a ten minute break. It's time for recess. After a hard lesson, this time is very importance. We are all happy and exciting. We can meet our friends and have fun. During the recess, the yard and classrooms is very noisy. Many students sit and chatting. Some eat or drink. Some play marbles or swap cards. This activities only stop when the bell ring. Then all the students go into they classroom and begin new lessons.
GIÚP MK VỚI MN ƠI!!!!!!!!!!!!!!!!!!!!!!(ai làm được,đúng và giải thích hết tất cả các câu trên thì mk sẽ tặng xu cho người đó)