--- Tomorrow we’ll go hiking in the mountain to experience nature.---- ___ it rains heavily when we are still halfway?

New digital mobile phones definitely produce less radiation, but that doesn’t ______ mean that they should be used without caution. 

The house still needed a lot of work, but ___ the kitchen was finished.

In recent years, the ______ dry heat had led to a series of natural disasters.

There is no doubt that I'm trying to do what is best, but ________ I have got to consider the cost.