_____ of water makes Death Valley a desert, but it is by no means devoid.

We are working under the command of the manager that no _______ be spared to make the party a success.

What British singer-songwriter Adele worried was ___________ the audience would accept her remained to be seen.

He managed to reach the summit of his career, but it was at the ________ of his health.

To her ________，the salesgirl still helps that old lady.