be sure of坚信，确信
be sure to(do)一定，必定
be taken aback吃惊
be terrified at被…吓一跳
be through with结束
be tired of厌烦;对...厌倦
be torn open被撕开
be unconscious of不知道…
be unfit for不适合，不胜任
be surprised at对…感到惊奇
be provided with装备有
be ready for为...准备好
be regarded as被认为是，被当做是
be rich in富于
be rid of除去，摆脱
be satisfied with对...满意，满足于
be short for是…的缩写(简称)
be sick for渴望
get used to习惯于
be well up in精通，熟悉
be willing to(do)乐意…
be grateful to感谢，感激
be independent of脱离…而独立，与...无关
be interested in对...感兴趣