The teacher have thought Johnson was worth it or she wouldn’t have wasted time on him, I suppose. A.should B.can C.would D.must 答案:D must have done表示对过去所做事情的肯定判断,表示“一定……”。 关于欧洲西部旅游景点的说法,正确的是( )A.英国的峡湾风光引人入胜B.伦敦的艾菲尔铁塔令人景仰C.南部地中海沿岸国家的海滨沙滩优美宜人D.芬兰的花卉尤其是郁金香闻名世界