Sorry,I'm late.I ---the alarm clock and gone back to sleep againA might have turned off B should have turned off C could have turned off D need have turned off

问题描述:

Sorry,I'm late.I ---the alarm clock and gone back to sleep again
A might have turned off B should have turned off C could have turned off D need have turned off

A
might have done sth.是常用句型,表示在过去可能做了什么.