TAILIEUCHUNG - OXFORD PRACTICE GRAMMAR 47

OXFORD PRACTICE GRAMMAR-47 sau đây là giáo trình lý thuyết tiếng anh và bài tập áp dụng từ cơ bản đến nâng cao , nhằm giúp các bạn có thể tự mình ôn tập và củng cố thêm về nền tảng kiến thức môn Anh văn , tự tin đạt kết quả tốt trong kỳ thi ngoại ngữ | OXFORD PRACTICE GRAMMAR 47 NECESSITY MUST AND HAVE TO A Present past and future We use must and have to has to to say that something is necessary. You ll be leaving college soon. You must think about your future. We re very busy at the office. I have to work on Saturday morning. Mark has to get the car repaired. There s something wrong with the brakes. When we use the past or the future with will we need a form of have to. Emma had to go to the dentist yesterday NOT She must go-to the-dentist yesterday. That wasn t very good. We ll have to do better next time. And in other structures we also use a form of have to not must. To-infinitive don t want to have to wait in a queue for ages. After a modal verb Emma has toothache. She might have to go to the dentist. Present perfect Mark has had to drive all the way to Glasgow. For negatives and questions with have to has to and had to we use a form of do. don t have to work on Sundays. Why does Andrew have to study every evening Did you have to pay for your second cup of coffee No I didn t. I don t have to work means that it is not necessary for me to work see Unit 48B . B Must or have to Both must and have to express necessity but we use them differently. MUST We use must when the speaker feels that something is necessary. You must exercise. I m telling you. We must be quiet. I m telling you. I we must can also express a wish. must buy a newspaper. 1 want to see the racing results. We must invite Claire. She s wonderful company. HAVE TO We use have to when the situation makes something necessary. I have to exercise. The doctor told me. We have to be quiet. That s the rule. 1 have to buy a newspaper. The boss asked melt get one. We have to invite Trevor and Laura. They invited us last time. Have got to Have got to means the same as have to but have got to is informal. We use it mainly in the present. I have to I ve got to make my sandwiches. My father has to has got to take these pills. Do we have to apply Have we got to .

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