— What should we do to prevent the flu?—We should keep our rooms_____ and the air fresh all the time.A. cleaning B. cleaned C. clean
—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.
—What a big storm last night! —Yes. I was doing my homework. Suddenly, all the lights in my house _______.