be filled with 充满
be fit for 适合,胜任
be fond of 喜欢,爱好
be free from 没有……的,不受……影响的
be friendly to 对……友好
be frightened at 受……惊吓
be glad to (do) 乐于(做),对……感到高兴
be good at (doing) 善于,擅长
be good for 适于,在……期间有效
be grateful to 感谢,感激
be identified as 被认为是
be independent of 脱离……而独立,与……无关
be indispensable for 对……必不可少的
be interested in 对……感兴趣
be involved in 包括……中,被卷入
be involved with 涉及
be kind enough to (do) 承……好意,恳请
be known as 被称作……,以……著称
be known to 为……所熟知
be late for 迟到