Mother are naturally countable nouns, since we can, clearly, count mothers
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The solar system is a complex system with many components.
You have interesting topic. You look at the person straight in the eyes. Don't stammer and break up your words. Make it easy for the other person to understand your statement.
In both of walt whitman's and Sara teasdale's poem, there is a contrast that both of these poems describe the horrible outcome of the war in which it destroyed the condition of our natural world. The poem conveyed that the world that we live in was really beautiful and the war brought nothing but ugliness to it
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