$A=\left\{x\in \mathbb{R}:x>7\right\}=\left(7,+\infty \right)$  

$\left\{7\frac{1}{10};8;674,5\right\}\subset A$  

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$B=\left\{x\in \mathbb{Z}:x<2\right\}=\left\{\dots ,-5,-4,-3,-2,-1,0,1\right\}$  

$\left\{-11,-3,1\right\}\subset B$  

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$C=\left\{x\in {\mathbb{Z}}_{-}:x<2\text{lub}x>2\right\}$  

$\left\{-5;-3;-1\right\}\subset C$  

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$D=\left\{x\in IQ:x<\sqrt{2}\right\}$   

$\left\{-\sqrt{13},-\pi ,-\sqrt{2}\right\}\subset D$  

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$E=\left\{x\in {\mathbb{R}}_{-}:x<-\pi \text{i}x>-5\right\}=\left(-5,-\pi \right)$  

$\left\{-4,99;-4\frac{1}{3};-3,5\right\}\subset E$  

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$F=\left\{x\in \mathbb{N}:x<1\text{lub}x\ge 7\right\}=\left\{0\right\}\cup \left\{7,8,9,10,11,\dots \right\}$   

$\left\{0,9,132\right\}\subset F$