Necessary, Prohibited or Optional?Version en ligne Decide whether the examples shown are necessary, prohibited or optional things to do. par Renata Hirose 1 1. Singers have to be careful with their voices. a Necessary b Prohibited c Optional 2 2. Attendants have to be polite to the customers. a Necessary b Prohibited c Optional 3 3. Students don't have to worry about school payment. a Necessary b Prohibited c Optional 4 4. Teachers can't punch their students. a Necessary b Prohibited c Optional 5 5. You don't have to cook, if you don't like it. a Necessary b Prohibited c Optional 6 6. You can't be late for the meeting. a Necessary b Prohibited c Optional 7 7. I have to talk to you, do you have time? a Necessary b Prohibited c Optional 8 8. She doesn't have to be so rude, she could be more polite... a Necessary b Prohibited c Optional
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