How do you conjugate hablar in the conditional tense

Using both preterite and imperfect tenses, describe a happy memory from your life. where were you? when did this event occur? who was there? what happened? how did you feel? your response should consist of at least 5 sentences in spanish.you will be graded on (a) pronunciation, (b) correct verb usage, and (c) overall quality of your response.

Ojalá que uds. a clase mañana. a. saben b. vienen c. vengan d. sepan

I'm stuck between soy, or estoy.which one is it?