—Look,Linda. The flowers in our classroom came out in one night.
—I can't believe it. They are beautiful and colorful. They _____ great.
本题考查感官动词的用法。根据题干中的“教室里的这些花一夜之间就开了”可推断,它们“闻起来”真香,所缺的词是 smell。
—Look at my new dress.
—Wow! _____ beautiful it is!
本题考查感叹句的结构。感叹形容词或副词要用 how,how 之后不必加冠词。
—What else do we need to make cold beef?
—_____.
本题考查不可数名词的“量”的表达方式。salt 是不可数名词,没有复数形式。two spoons of salt 意为“两勺盐”,故答案为 C。