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-- What does the sign  mean?      

-- It means “_________” ．

A．Turn left      B．No crossing           C．Crossroad         D．No smoking

—What does the sign mean?

—It means ________．

A． Plant trees．                                    B． Be careful．

C． Save water．                                  D．Take care of the earth

— What does the sign  on the bottle mean?
— It means “    ”.