Giúp mik vài tìm và sửa lỗi sai vs ạ... Mình cho 5 sao ạ.. Mình cần gấp lắm ạ !!

VI. Correct a mistake 1. He is an amateur but he can work more quickly than many professions. 2. The brain is made up of billions of neurons that differ with each other greatly in size and shape. 3. When a pearl is cut in half and examined under a microscope, so its layers can be seen. ...