单项选择题
A. They arranged for his hunting accident. B. They thought he was crazy. C. They decided to help him. D. They asked him to teach them to read and write.
A. A blended family is formed by two single-parent families. B. A blended family is formed by a nuclear family and a grandparent. C. A blended family is formed by a nuclear family and grandparents. D. A blended family is formed by two fatherless families.
A. The lung. B. The colon. C. The chromosomes. D. The breast.