Wethink

問題詳情：

We think ________ is our duty to make our country a better place.

A．it                                   B．this

C．that                                 D．one

【回答】

解析：題幹中________ is our duty to make our country a better place為省略了引導詞that的賓語從句，it在從句中作形式主語，真正的主語為後置的不定式短語to make our country a better place。

*：A

知識點：代詞

題型：選擇題