No suponías que (yo) contigo al circo. (ir)
el médico opina que esos pacientes no hospital esta semana. (salir)
ernesto y yo les dijimos que (nosotros) í a las seis. (llegar)
azucena imaginaba que usted . (querer)
sé que ellos felices juntos. (vivir)

1- iría
2- saldrían
3- llegaríamos
4- quería
5- vivirán

All these r right, hope it helps:)

I'm not sure if you mean for us to translate or to answer. but i'll translate as these are questions for you to answer. 1. how long has it been since you've read a book? . 2. how long has it been since you've eaten breakfast? . 3. how long has it been since you've talked with your spanish professor?