IV. Read the passage and tick true (T) or False (F). Even before it is born, a baby has small teeth under its gums. At about the age of six months, it
IV. Read the passage and tick true (T) or False (F). Even before it is born, a baby has small teeth under its gums. At about the age of six months, its first tooth starts to grow. Before the young child is three years old, it has twenty small teeth. Between the ages of six … Đọc tiếp