78．Her cheeks burned, she was fearfully ______(口渴).　　　 78．______

77．In the afternoon they went to two or three______ (展览会) of modern art.　 77．______

76．______

根据下列句子及所给汉语注释，在句子右边的横线上写出空缺处各单词的正确形式。(每空只写出一词)

76．Some of them were busy______ (准备) for the work of the next day.