题目

Lucy was very angry. She didn’t know what to say.（两句合并为一句）Lucy was ________ angry ________ she didn’t know what to say. 答案：【答案】so that 【解析】此句句意为“露西非常生气。她不知道该说什么。”此句可使用“so+形容词+that+句子：如此……以至于……”表达，意为“露西如此生气以至于她不知道该说什么。”故答案为（1）so (2) that。计算：（4.5）2= ．