Atthebeginningofthetwentiethcentury,mostpeopledidn’tac...

問題詳情：

 At the beginning of the twentieth century, most people didn’t accept Albert Einstein’ theory when it was first _______.

A. put out                B. put aside                   C. put down                 D. put forward

【回答】

D

知識點：動詞

題型：選擇題