参考答案:that it took us nearly two weeks to solve it 答案解析:[解析] 根据is so complicated和汉语意思可知，本题要求填写一个结果状语从句，引导词用that。“花费…时间做…”常用it takes/took sb. some time to do
第21题:[单选题]It’s a time-honored tradition, and ‘She’s A Woman’ has always been one of my _______songs. A.feverish B.favorite C.favorable D.feasible 参考答案:B 考查形近词辨析。one of my favorite songs 我最喜欢的一首歌之一。feverish
发热的；极度兴奋的；favorable 有利的；赞成的；feasible 可行的，可实行的。
