This doubt had been in my mind for some time, but the research still went on        some reasons.
[     ]
A. to
B. about
C. for
D. in
練習(xí)冊系列答案
相關(guān)習(xí)題

科目：高中英語 來源： 題型：單選題

This doubt had been in my mind for some time, but the research still went on _________ some reasons．


  1. A.
    to
  2. B.
    about
  3. C.
    for
  4. D.
    in

查看答案和解析>>

科目：高中英語 來源：貴州省模擬題 題型：單選題

This doubt had been in my mind for some time, but the research still went on _____ some reasons.
[     ]
A. to
B. about
C. for
D. in

查看答案和解析>>

科目：高中英語 來源： 題型：

 

14．This doubt had been in my mind for some time, but the research still went on____some reasons.

       A．to     B．a(chǎn)bout C．for    D．In

查看答案和解析>>

科目：高中英語 來源： 題型：

This doubt had been in my mind for some time, but the research still went on        some reasons.

A．to                              B．a(chǎn)bout                  C．for                      D．in

查看答案和解析>>

同步練習(xí)冊答案