Necessity, Obligation, Lack of Obligation, and Prohibition
We use need to, have to, must, should ,can to show if something is necessary or possible to do.
1. I need to go on a diet. (It's necessary.)
2. Peter doesn't need to work hard now. (It isn't necessary.)
3. You must study hard if you want to pass your exams. (It's necessary, but it's a personal obligation.)
4. You mustn't touch the paintings in the gallery. (It's not allowed. It's forbidden.)
5. You have to wear a seatbelt in a car. (It's necessary, but it's not a personal obligation. It's the law or the custom of the country.)
6. You don't have to help me if you don't want to. (It isn't necessary.)
7. You should see a doctor. (It's a good idea or good advice in a specific situation.)
8. You shouldn't touch the artwork. (It's not a good idea.)
1. In the US, you can turn right at a red light.
2. You can't ride a motorcycle without a helmet.
热血沸腾
超级棒的节目
已经设成单曲循环了
前进吧,兄弟姐妹
赞一个,主播加油。我很喜欢你。
不错,持续在听
节目好评
还是一如既往的喜欢收听
讲的很有特点,吸引我的地方很多。
我喜欢这段,还有主播声音好好听