It was not until near the end of the letter ______ she mentioned her own plan.
--- Can you help me search for some information from your computer? --- _______, but I must finish my homework first.
The box is so heavy that he cannot lift it. _______, he is only a ten-year-old child.
--- Is this book familiar ______ you? --- Sure. I am also familiar ______ its writer.
The place _______ I visited last summer is just the place _______ I spent my childhood.
The machine has ______ again; I think we’d better buy a new one.