The process of curing a disease is like a war ___ different soldiers fight against an enemy.

There is no need for you to be concerned. It is very easy for her to the new environment. [ ]

How happy we are! The holiday we have beenlooking forward _______ at last.

We ____the help he gave us when we moved to our new house.[ ]

If nothing________，the oceans will turn into fish deserts(2013·湖南，26)