下列语句中，标点符号使用不正确的一项是（    ）

25．— Could you have the report ready by Friday?                                        
— I ______ think so．                                                                              

任务型阅读 
    My friend, Tom lives a happy life.（1）He usually gets up at 6:00 . Then he goes for a walk. At 7:00 he comes back. He brushes his teeth and takes a shower. （2） Then he eats breakfast. After breakfast, he goes shopping（购物）with his friends. （3）他大约十点半到家。And he cooks lunch. After lunch, he goes to the club. He reads books and plays chess. He eats dinner at home at 6:00 pm. （4）           the evening he likes watching TV. At around 9:00 pm he goes to bed.
根据短文内容，完成下列任务

读“某地某种构造地貌示意图”，根据图上信息，可以推出的正确结论是（    ）

马克思主义诞生的最根本的历史条件是