Question

--I know not lung about the history of the telephone. Could you tell me       ?
--Yes. In 1876.
A. when the telephone invited
B. who invented the telephone
C. when the telephone was invented

Answer 1

C

本题考查宾语从句及被动语态。首先宾语从句要用陈述语气，根据答语可知在询问时间，且电话和发明之间为被动关系，故选C。