第二节：完成句子（10分，每小题2分）

76.Since LiMing settled here, he______________(相处得很好)with his neighbors.

77.___________(因为)the bad weather , we have to stay at home instead of going to see the film.

78．At first he wanted to give up the chance, but later he____________(改变主意)。

79.The girl_______________(正在看书的)is from Canada.

80.If you are in trouble , you can_______________(求助) your teachers.

肿瘤以组织发生为依据，按肿瘤的分化成熟程度及其对人体的危害程度，分为（）

A、癌症

B、肉瘤

C、良性

D、恶性