把肯定句改成否定句
①我们都举手赞同。 ②这件事一定得去他办。
①我们无不举手赞同。②这件事非得他去办不可。
Peter was so excited _______ he received the invitation to the important meeting.
如图,将矩形纸带ABCD,沿EF折叠后,C、D两点分别落在C′、D′的位置,经测量得∠EFB=65°,则∠AED′的度数是( )