Obligation & Necessity (must/have to) Exercises PDFSet 1: Must and Have To: Obligation Exercises

20 questions·12 min·Answers included·Explanations included

Preview: Questions

Fill in the blank with the correct option.

1.You ___ wear a seatbelt in the car. It's the law.

a) must tob) have toc) has tod) having to

2.I ___ finish this report today. My boss is waiting for it.

a) mustb) havec) has tod) musts

3.She ___ take a test before she can get her driving licence.

a) must tob) have toc) has tod) haves to

4.___ I show my passport at the airport?

a) Must I tob) Do I have toc) Have I tod) Am I have to

5.We ___ be quiet in the library.

a) haveb) must toc) are mustd) must

... and 15 more questions in the PDF

1.have to

2.must

3.has to

4.Do I have to

5.must

... and 15 more answers in the PDF

1."have to"(b)

Use 'have to' for obligations that come from external rules or laws. 'Must to' is always incorrect — must is followed directly by the base verb.

2."must"(a)

Use 'must' for strong personal obligation or urgency. 'Musts' does not exist — must has no -s form for third person.

3."has to"(c)

With he/she/it, use 'has to' (not 'have to'). This is an external requirement — you need to pass a test to get a licence.

4."Do I have to"(b)

To form questions with 'have to', use 'Do/Does + subject + have to'. 'Must I' is possible but very formal and rare in modern English.

5."must"(d)

Use 'must' for rules and strong obligations. 'Must' is followed directly by the base verb — never 'must to'.

... and 15 more explanations in the PDF

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