be able to(do)能(做)，會(做)
be absent from缺勤，缺課
be accustomed to習慣於
be active in積極於
be alive to發覺，感覺，對…敏感
be angry with對……發怒
be anxious for急切盼望，渴望
be ashamed of爲…感到害臊
be about to(do)即將，正要
be abundant in富於，富有
be acquainted with與…相識，熟悉
be afraid of恐怕，害怕，擔憂
be angry at因某事生氣
be anxious about擔心，爲…擔憂
be anxious to(do)渴望(做)
be aware of意識到
be bad at拙於，不善於
be based on根據，以…爲基礎
be beside oneself忘乎所以
be badly off生活窮困
be bent on熱戀於，一心想
be better off處境較好，情況好轉
be born in出生於……
be bound to(do)一定會，不得不