$1.$ Because of my sickness, I do not go out$.$

$2.$ He left school because his life was hard$.$

$3.$ Because of the polluted water, we can't swim in that river$.$

$4.$ The train came late because the rain was heavy$.$

$5.$ Because of his bad behaviour, he found himself in trouble$.$

$6.$ I can't sleep because the weather is cold$.$

$7.$ Because of the snowy weather, we didn't go out for a walk$.$

$8.$ Because they perform well, they won the first prize$.$

$9.$ I can't study because it is noisy$.$

$10.$ The plane couldn't take off because of the bad weather$.$

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*Cấu trúc: $Because$$/$$Because$ $of$ (Bởi vì).

$-$ $Because$ + S + V, S + clause.

$-$ $Because$ $of$ + Noun/ Noun phrase/ V-ing + S + V.