10、Such sewing machines are supposed to _______ only skilled operators.

A. operate      B. be operated on      C. operate on   D. be operated by

 

10、D

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：

Such sewing machines are supposed to _______ only skilled operators.

A. operate      B. be operated on      C. operate on   D. be operated by

 

查看答案和解析>>


同步練習(xí)冊答案