【正文】
nit 2 練習(xí)題 1.—What does this sign ? ( ) It you shouldn’t walk on the grass. A. mean mean B. means means C. mean means 2. LiuTao should his homework now. ( ) A. do C. doing signs mean Be quiet”. We should here. ( ) A. keep quiet quietly C. make noise means “Danger!” We shouldn’t the building. ( ) A. keep off B. stay away from C. go in ’t here. It means “ No “. ( ) swimming B. swimming swimming C. swim swim you like the park? (