be said

【问】 Venus has been the Earth's twin because it is in and mass.(TOEFL，86. 1)

我看不出这个句子有什么错误。

【答】 应记住：be said之后要跟一个带to的动词不定式。例如：

1. An egg is said to be the equivalent of a pound of meat. (RCD)

据说一个鸡蛋相当于一磅肉。

2. The tiny village of Frinley is said to possess a'cursed tree'.(New Concept English，Book 2，L. 58)

据说弗林利小村里有一棵“被诅咒”的树。

还应注意，be said to do没有与之相对应的主动结构。He is said to be不能说They saidhim to be。

请做下面的英语试题：

overall exports exceed ， a to have surplus. (TOEFL，93. 1)