What made Bill so angry?________.His girl friend promised to come at 8:30,but she hasn'tcome yet.AHaving kept waiting B.Being kept waiting be deeping wait D.Being kept waited選Ｂ．why?

熱心網友

被動語態，因為Bill的女朋友沒來，他才被迫等待的，故不能用主動語態被動語態構成是：be（相應時態）+過去分詞keep的過去分詞是kept，句型是keep doing sth然后動名詞作主語故選B

熱心網友

What made Bill so angry?__Being kept waiting _.His girl friend promised to come at 8:30,but she hasn'tcome yet.首先to keep sb。doing 固定用法主要的是Being kept waiting 在回答中作狀語，然后可以看到空格后面是句號表明這個空格里面就是對上面一句的回答，后面是一些補充說明。因此斷定空格部分的主語是問句中的Bill，把省略部分寫出來就是：Being kept waiting, Bill got very angry. 因為主語是bill所以專與部分要用被動語態 being kept waiting, being現在分詞表示伴隨。