题目

根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并将答案标号填写在本题下面相应题号后的横线上。选项中有两项多余选项。—Now, tell me about the man who stole your neighbor’s car. What did he look like?—Well, sir. He was tall…—     1    —Oh yes, and he was younger than you — only about thirty, I’d say.—Well! And what color was his hair?—It was brown, and short… it was similar to yours, actually.—      2    —No, He was clean-shaven.—OK. Now have a look at these photos — can you see三个连续的自然数的最小公倍数是660，三个数中最小的数是________．