In modern society people have to pass various test for professional          so that they can be qualified for a good job.

Will you please also state your earliest delivery date, your terms of payment, and discounts for regular _______?

Such a magazine has＿＿＿＿＿except when you have time to kill．

The most important _____ of his speech at the G20 summit was that we should all unite to fight against the financial．

Can you think of a _____ in which you could use this expression.