下列微粒 ①Al³⁺ ②Cl^－ ③N₂ ④MnO₄^－⑤CO₂ ⑥H₂O₂ ⑦Fe²⁺ ⑧MnO₄^2－。既具有氧化性又具有还原性的是

A．①④⑤⑦

B．③⑥⑦⑧

C．④⑤⑥⑧

D．①②③⑥

Julie，what ______in your hand?

Look! It’s a new iPad for my daughter．

A．do you hold

B．are you holding

C．were you holding

D．will you hold