22. Up to Tuesday.s attack, the worst school shooting in the U. S. was in March 1998 in Jonesboro, _______ two boys, aged 11 and 13, shot and killed a teacher and four girls.( )(本题3.0分) A、 while B、 where C、 when D、 then
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23. —How did you find your visit to the museum, Ja
23. —How did you find your visit to the museum, Jane? ( )—_______.(本题3.0分)A、 Oh,