恩格斯指出,任何新的学说“必须首先从已有的思想材料出发,虽然它的根源深藏在经济的事实中”。最能印证其主旨的是
—Why are you moving out?—________, but I just don't like the atmosphere here.
—Believe it or not, I have met him before.—No kidding? ________ you've never mentioned it?
—What's the capital of Bhutan?—________ Let's go online and find it out.
—I hear Kris had an accident as he was riding his bike to school yesterday.—________? He is always so careful when he is riding.
—Hello, Mrs James. Is Sally at home? I want to play badminton with her.—________. She's gone for a walk across the fields.