Present Simple vs Present Continuous vs Future Simple

Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple. Everyone _________ (know) that when it __________ (not be) hot, snow __________ (begin) to melt easily.

Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple. I ____________ (be sure) you ______________ (not fail) the exam next week.

Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple. I ______________ (not know) what to do. My husband's parents ________________ (come) for a meal tonight.

Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple. Mary _____________ (cook) dinner as soon as she ____________ (be) through with her homework.

Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple. We ______________ (go) on an excursion if we ______ (pass) the exams successfully.

Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple. I __________ (promise) I ____________ (write) to you every day.

Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple. I ____________ (swear) I _______________ (not tell) a lie.

Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple. They ______ (leave) for Paris in two days’ time. The plane _______________ (start) at 3 pm sharp.

Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple. It ______ (be) 7 o’clock now. I _______________ (not know) when he ___________ (return) and whether he __________ (come) at all.

Put the verb in brackets into the Present Simple or the Present Continuous or the Future Simple. Tomorrow, if you _________ (feel) well, I __________ (let) you go for a walk.