It is very kind ______ you to help me with my lessons because it is very difficult ______me to learn them well.
—Would you please _______ so much noise?—Oh, sorry, I won’t.
—Do you like swimming?—Yes, swimming is a good way _______ fit.
—Would you like to climb mountains with me this Sunday?—I’d love to. But I _______ play table tennis against Class Three.
——Your watch is so beautiful. It must be expensive. ——Not at all . I only _____$20 on it. A take B. pay C. cost D. spend
Do you know the _____ between these two words?