We (to be) pleased to see you if you (to arrive)
we (to go) nowhere tomorrow if it (to rain)
if there (to be ) no buses she (ta have) to take a taxi
we (to have) a hike if the weather (to be) fine

We will pleased to see you if you arrive

We will go nowhere tomorrow if it rains

If there are no buses she will have to take a taxi

We will have a hike if the weather is fine

Объяснение:

First Conditional - Первый тип условия

Условие: If + Present Simple

Результат: will + глагол без to