How do the shops make money if they sell at such low prices? — Manufacturers, it seems, are willing to bring down prices ________ big volume purchases.[ ]

Mum, I want to have some milk.—There is none . What about orange juice

One of the students __________ good at ________piano.

Was it because of his laziness_______ he didn’t do the experiment successfully?- No, it was because of his carelessness.

ve you seen my mobile phone—_______you bought last week I’m afraid I haven’t seen _______