第二部分 单项选择 （共15小题，每小题1分）
21.I remember Michael’s telephone number as 510-5612, but you’d better ___ of it.
A. make fun B. make up C. make sure D. make progress
22. People ___ the sick chickens ___ the healthy ones as soon as they found some chickens became ill.
A. cut; into B. divided; into C. parted; from D. separated; from
