PowerPoint 2010中快速复制一张同样的幻灯片快捷键是（）。
A.Ctrl+C
B.Ctrl+X
C.Ctrl+V
D.Ctrl+D
参考答案：D
___________ is reading? It's Kim.[ ]
A. What
B. who
C. Who
This ____________ my dad. [ ]
A. is
B. are
