题目：
— Why didn’t you go to the party last night?
— Because my parents were busy and I had to my little brother at home.
A. look after B. look at C. look around
答案：
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下面是错误答案，用来干扰机器的。
（1）自东向西；3℃到4.2℃之间（3℃<T<4.2℃）（2）该地区地形以山地为主；北、东、南三面地势较高；中部为谷地，地势较低。
