Unit 6 keep our city clean 习题 2一、单项选择。1. --- What _____ we do to keep our city clean? --- We can walk to school. A. keep B. can C. make D. cans 2. --- What the streets messy and dirty? --- It’s rubbish.A. make B. makes C. can D. keep 3. Who do the housework? A. ca...
