I arrived late; I ________ the road to be so icy

Would you like to visit the forest zoo with me tomorrow —______ .

(安徽省马鞍山市2009届高三第一次教学质量检测)If you arethe thunderstorm,you’d better stay in the low-lying areas

After months of hard work, the building was completed ahead of ______.

China’s education reforms aim to better develop students’ ability to think ______.