Jack is late again. It is ____of him to keep others waiting.

下列各项中，划线字的字音全部正确的是

Only when people have enough to eat and plenty to wear ______ to talk about environmentalprotection.[ ]

When I met him the other day，it was the first time we ________ each other since we were at school.

ailable to fight A/H1N1 flu ________ as swine flu, WHO officials said