thank you

一直用迅雷下载学习的,所以好久没来顶贴了哦``

听完, 看下一课

continue

thank you

Have you bought a new car?

No, I haven't bought a new car.

When will you buy a new car?

I will buy a new next month.

When did she buy a car?

She bought it last month.

has she sweep the floor yet

yes ,her has already sweep the floor

when did her sweep the floor

her sweep the floor yesterday morning