I have to get up early tomorrow to catch the first bus. （我明天必须早起去赶第一趟公交车。）

She has to finish her homework before watching TV. （她必须在看电视之前完成作业。）

They have to work overtime this weekend to meet the deadline. （他们这个周末必须加班以赶上截止日期。）

He has to take care of his sick mother at home. （他必须在家照顾生病的母亲。）

We have to wear uniforms at school. （我们在学校必须穿校服。）

You have to be quiet in the library. （你在图书馆必须保持安静。）

The students have to pass the exam to move to the next grade. （学生们必须通过考试才能升入下一个年级。）

My sister has to practice the piano every day. （我妹妹每天都必须练习钢琴。）

They have to clean the classroom after school. （他们放学后必须打扫教室。）

I have to go to the dentist because my tooth hurts. （我必须去看牙医，因为我的牙疼。）

He has to save money to buy a new car. （他必须存钱买一辆新车。）

She has to attend a meeting this afternoon. （她今天下午必须参加一个会议。）

We have to follow the traffic rules when we drive. （我们开车时必须遵守交通规则。）

You have to make your bed every morning. （你每天早上必须整理床铺。）

The workers have to build the house according to the plan. （工人们必须按照计划建造房子。）

I have to learn English well to get a better job. （我必须学好英语才能找到更好的工作。）

She has to cook dinner for her family tonight. （她今晚必须为家人做晚餐。）

They have to take an umbrella as it's going to rain. （因为要下雨了，他们必须带把伞。）

He has to give up smoking for his health. （为了他的健康，他必须戒烟。）

We have to arrive at the airport two hours before the flight. （我们必须在航班起飞前两小时到达机场。）