摘要写作The dentist had just pulled out one of the writer's teeth and had told him to rest for a while.He askedseveral questions but the writer could not answer them .His mouth was full of cotton wool.He suddenlydiscovered something wrong but he could not say anything.The dentist eventually removed the cottonwool from his mouth and the writer told him that he had pulled out the wrong tooth
选择 1－5 cbcba 6－10 cbbda 11－12 bc