—Peter is always careless.—Don't ________others; there is no perfect person.
_____ three influenza type A virus subtypes(子类型) have been found in pigs.
_____, experts point out that students can easily fail at starting their business because of a lack of preparations.
It has always been the _____ of our government to encourage graduates to start their business.
The most important _____ of his speech at the G20 summit was that we should all unite to fight against the financial.
He directed exposure to pigs, otherwise he_______ pig flu.