Respuesta :

theona

Hi !!

Se sabe que fumar  produce cancer.

It is known that smoking causes cancer

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se entra  que = it enters

se sabe que = it is known that

se venden = they sell

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Answer:

(B) Se sabe

Explanation:

The answer would be (B) because this is something that you know. We know that smoking causes cancer and thats what "se sabe" means.