It must be ********

It must be ********

你好，你的句子是强调句。以下是非强调句：I am sure that something that happens to those winter-born children accounts for their faring poorly. 然后，it must be ------（第二个） that-----是强调句结构，something做主语，不是宾语。第一个that是定语从句的连接词，做主语，修饰something, happen to sb.===发生在某人身上， those winter-born children 做happen to 的宾语，accounts for their faring poorly做something的谓语和宾语。must be 解释为---- 肯定，一定，表推测,在强调句中作谓语 还有，something在你的句子里做must be的表语，在非强调句中做主语。 明白了吗？