21、Great changes ______ since the People’s Republic of China was founded 60 years ago．

A．took place                                           B．have taken place        

C．were taken place                                 D．have been taken place

21、B

請?jiān)谶@里輸入關(guān)鍵詞：
相關(guān)習(xí)題

科目：高中英語 來源： 題型：

Great changes ______ since the People’s Republic of China was founded 60 years ago．

A．took place                                           B．have taken place        

C．were taken place                                 D．have been taken place

查看答案和解析>>


同步練習(xí)冊答案