A. traffic rules B. traffic lights 
A. No.14 bus B. No 40 bus
A. by train B. by subway 
A. Wait at a yellow light. B. Stop at a red light.
A. by bike B. by ship 
（ ）| A．by bus | B．by ship |
（ ）| A．one way | B．no entry |
（ ）| A．go at a green light | B．stop at a red light |
bus
by foot
wiat
A． （____） 2. Open your book. | B． （____） 3. Goodbye! | C．  （____） 4. Let's play! | D．  （____） 5. Carry your bag! | E． |
搜索
