【正文】
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? ( ) A. to go to B. go to C. to go 7. Classes begin half past eight. ( ) A. at B. on C. in 8. Is your birthday July? No, it’s the 14th of August. ( ) on B. in on C. on i