专升本考试

【单选题】Many teakettles whistle when the ______ starts to boil.
A、containing water inside
B、water contained inside
C、water containing inside
D、contain water
网考网参考答案：B
网考网解析：
动词过去分词后置作定语。Water contained inside = water that is contained inside，选项 B是正确的。 查看试题解析出处>>