What’s the matter_____ Sally?[ ]

________do you do morning exercises?—Every morning.[ ]

.Man’s shopping can be and often is completed in five minutes，which is less than a quanrter ________。

I’ll speak to Peter about his lessons when he ______ back from school. 　　[ ]

We have to get to the bus station ___________ 8 o’clock, or we’ll be late.[ ]