骑自行车转弯时要注意观察并伸手示意。（   ）

    Grace is a student of a junior high school. She is a good student. She usually gets up at six in the morning. Then she has breakfast.____ Her mother takes her to school in the car. It takes about half an hour to drive there.

    The first class begins at seven thirty.____ She has lunch at school at twelve o'clock. She often has rice and vegetables for lunch because (因为) it's her favorite food.____

    In the afternoon, classes begin at half past one.____ She gets home at about a quarter to five and has dinner at six.____ At about nine thirty, she goes to bed.

根据短文内容，从下面五个选项中选出能填入空缺处的最佳选项，使短文意思通顺。