【正确答案】 B

【答案解析】[解析] first，副词“首先”，即：before some other time，经常与then连用；at first意为at the beginning“一开始，起先”，常与later连用；in the first place“首先，第一点”，常与in the second place连用；at the start“起初，开始”。句意为：“我首先给警察打了个电话，然后把丢失的东西列了个单子，接着给自己沏了杯茶。”试比较：I put on my shoes first and then my scarf and gloves. 我先穿上鞋再戴上围巾、手套。He changed so much that I couldn't recognize him at first. 他变化太大了，我开始都没认出来。Will you in the first place tell me how you are?你首先告诉我你身体如何，好吗？The idea was wrong at the start. 这个想法一开始就错了。