So far we have done a lot to build a low-carbon economy, but it is _______ ideal. We have to work still harder.

I phoned my first teacher time and again when I heard that he was ill, yet couldn’t_______

The rain will ___the crops.

    the lack of water and food, the homeless have to deal with the cold weather.

We know a lot about these early years of European settlement because most migrants ________ with their families and many of their letters still survive.