Lesson 10 Crossword
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
                   
 
 
Down: 1) kind of signal at sea2) support services3) occuring at the same time5) substance that causes chemical reaction9) going over a large area11) platform built out from the shore Across: 4) mainly6) place to tie a boat7) to remove components from a mixture8) burn exess gas10) work given to someone12) ordinary
 

 

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