Rewrite each of the following sentences in another way so that it means almost the same as the sentence printed before it

VIII.Rewrite each of the following sentences in another way so that it means almost the same as the sentence printed before it .
6.They haven't gone to the seaside for two years . 
It's .................................................................
12.Keeping off the grass in the park is very important. 
It's....................................................................
13.Studying English is necessary these days. 
It's..............................................................
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