You haven’t been to the Water Cube，have you— ． How I wish to go there!

My phone is at home. I have to go back for it.— You don’t need to. You can use ____.

下列四种不同的表达语得体的一项是

I don’t understand why you didn’t go to the lectureyesterday afternoon.

My parents used ________they had to get anew car for my brother.