Trees used to be ______ for cooking by the villagers in the 1970s. A. cut up B. cut down C. cut off
—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.
--- We have won the science competition! ---Really? __________________!
---Millie,is there anything else you want to know about Huaguo Mountain? ---Yes,I am still wondering __________ .
— I know smoking is bad for my health, ____ I just can’t give it up. — It is easier said than done.