Sometimes it's good to stop for a while to think about the past and ______ the future.
【正确答案】 B
【答案解析】有时候停下脚步来想想过去、思考一下未来，也是挺好的。A contaminate“污染。弄脏” B．contemplate“深思，注视”C．consolidate“巩固，加固”D．contradict“反驳，否定”