1 . A________ in the interesting book, the boy didn’t notice his mother coming in. (根据首字母单词拼写)

2 . Lucy, going through a difficult period right now, finds her friends email really u________ and tries to cheer up. (根据首字母单词拼写)

3 . She got very f________ (害怕) when a plane flew over her head. (根据中英文提示填空）