2.She will be very dissapointed if you do not come.
3.You will catch a cold if you go for a walk in this weather.
4.My english teacher will be mad if she does not get it tomorrow.
5.If the weaher is nice, I will show you the Old Town.
Объяснение:
First Conditional - возможная ситуация в будущем, предсказываем результат.
If + Present Simple + will
