Task 2. Fill in with must, mustn't, have (has) to, don't (doesn't) have to, need or needn't. Each of them can be used only once. 1.My sister .....buy a school uniform. They don't wear uniforms at her school. 2. Children......... some time to change clothes after their PE lessons. 3. Our teacher is ill so we......... prepare for the test tomorrow. 4. We .......... be late for school.. 5. They.........take their books from the library by Tuesday. 6. You ......wear a uniform to school.


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