Thesongissobeautifulthatitisnot

問題詳情：

The song is so beautiful that it is not________.

A．easy to forget                                     B．easy to be forgotten

C．forget easily                                        D．easily to forget

【回答】

【*】　A

形容詞作其表語，用主動形式。

知識點：固定句型

題型：選擇題