. In face of _______failure, it is the most important to keep up____good state of mind.
In such dry weather, the flowers will have to be watered if they ____________
It is the protection for the trees___________ really matters, rather than how many trees are planted.
We can’t go on with the experiment because the computer_________.
The two sides have finally___________, though some small differences still exist.
He has a part - time job and was paid___________.