Stop at the ______. A. yellow light B. green light C. red light
I must ______ the traffic lights. A. look after B. pay attention to C. look for
There is a picture _____ a bike. A. in B. of C. at
In the USA, people on bikes must ____ a helmet. A. on B. put on C. wear
There are always three lights: red, yellow and ______. A. green B. blue C. orange
– How can I get there? -- ____________. A. Take No. 57 bus. B. Take a No. 57 bus. C. Take the No. 57 bus.