This is the complete sentence using the simple present tense:
Tenemos que estudiar porque mañana vamos a tener un examen.
In this exercise, you have to complete the sentence given with the verbs conjugated in the simple present tense and other verbs in its infinitive form.
You use the Spanish simple present tense (''presente del indicativo'' in Spanish) when you want to talk about habitual situations, routines, universal truths and facts.
Check more information about the simple present tense brainly.com/question/25856028
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