问题
听力题
根据句意和汉语注释，写出单词的正确形式。
小题1:The _____________ （建议）they have offered us are very useful,we should take them.
小题2:Beijing is the capital of China,it is also the _______________（文化）center of China.
小题3:Tonight, they are going to celebrate their father’s _____________ (四十) birthday.
小题4:How beautiful those circles on those ________________________ (蝴蝶)wings are!
答案
小题1:suggestions
小题2:cultural
小题3:fortieth
小题4:butterflies’
题目分析：
小题1:他们提供给我们的建议，要用建议的名词复数形式，suggestions。
小题2:cultural“文化的”是形容词来修饰后面的名词。
小题3:某人的多少岁生日，要用相应的序数词。故用fortieth
小题4:这些蝴蝶的翅膀，要用蝴蝶的复数的所有格。故用butterflies’
考查：单词拼写。