Page 81 - Grammar For YDT - 12
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EXERCISES - MODAL VERBS
C) Circle the correct modal verbs in the following table.
Doctors...
1. ---- harm any human being as they oathed. must – mustn’t – needn’t – have to
2. ---- be responsible for the care and safety of patients. must – mustn’t – needn’t – have to
3. ---- be polite to patients. must – mustn’t – needn’t – have to
4. ---- diagnose and treat the patient. must – mustn’t – needn’t – have to
5. ---- inform patients’ parents about their illnesses. must – mustn’t – needn’t – have to
6. ---- have a duty to respect their patients’ confidentiality. must – mustn’t – needn’t – have to
7. ---- work at the weekends or nights at times. must – mustn’t – needn’t – have to
8. ---- lose sight of core professional values. must – mustn’t – needn’t – have to
9. ---- discriminate between patients. must – mustn’t – needn’t – have to
10. ---- choose surgery in the first place; medication may help. must – mustn’t – needn’t – have to
D) Fill in the blanks with a suitable past form of modals.
used to should have needn’t have had to might have
1. People often _______________ light candles to illuminate homes before the invention of electric light bulbs.
2. We _______________ wait for a very long time since there was a huge queue in front of the theatre.
3. They _______________ paid the electricity bill; they are in the dark now.
4. I don’t know where the boss went for a holiday, but he _______________ gone to Rome or Malaga.
5. The teacher has finally found the lost test papers; therefore, she _______________ retested her students
yesterday.
may have would rather not have wouldn’t have shouldn’t have would rather have needn’t have
6. The seminar was boring. I _______________ attended it.
7. Richard _______________ missed the bus. In that case, he _______________ had to take a taxi.
8. The students taking the make-up exam _______________ worried so much. Upon seeing their papers, they
realised that the questions were straightforward.
9. Instead of medicine, he _______________ studied pharmacy at university.
10. Researchers working on rats believe that they _______________ found a part of the brain that is crucial for
making decisions on the spot.
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