Usages of since
Since she has had a cough for two days, she should stay home and rest.
Como ha tenido tos durante dos días, debería quedarse en casa y descansar.
Since my passport expires tomorrow, I have to renew it today.
Como mi pasaporte vence mañana, tengo que renovarlo hoy.
Since the sponge was on the counter, I cleaned the mug again.
Como la esponja estaba en la encimera, limpié la taza otra vez.
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