-- Do you know ________ her mobile phone? -- No, I think it cost her around 4000 yuan.
—Look at the sign! —Oh, I see.We _______ waste water.
—Didn’t you finish your homework last night? —_______, though I wasn’t feeling well.
Mrs Smith has a cute baby. It often smiles at people ________.
—Mum, can we go to the art museum tomorrow? —Sure. But first we should find out ________.
My grandparents like to live in a house _______ is not very big but bright and comfortable.