Grain production in the world is __________, but still millions go hungry.

单项选择题The commission would find itself __________ at every turn if its members couldn't reach an agreement.

单项选择题Even sensible men do __________ things sometimes.

单项选择题Some educators try to put students of similar abilities into the same class because they believe this kind of __________ grouping is advisable.

单项选择题Military orders are __________ and cannot be disobeyed.

单项选择题What you say now is not __________ with what you said last week.