【正文】
ts when you leave the classroom. (2) dangerous danger dangerousely Safe safety safely are quite tall. quite quiet 練習(xí): His English is q perfect. the bridge, and you’ll see the elep hant. Cross 穿過(guò),橫穿,常用于過(guò)路、河、橋、街等 練習(xí): ① You can’ t the road now, because the traffic lights are red. A. keep B. across C. through D. cross ② When you are at and ready to the road, you should be careful.(cross)