Unit 1 How often do you exercise一、选择填空( )1. Is your bike broken? Let _ you. A. me to help B. I help C. me help D. I to help ( )2. Although they feel tired, _they still go on working. A. and B. but C. / D. so ( )3. The woman cant_ his son in the park. A. read B. watch C. look D. find ( )4. Li Lei works in England. He comes to China_. A. three time a year B. three times a year C. thre
