Cover of Focus 3 (2nd edition) - Workbook

Answer — Exercise 1

Modal verbs for obligation and permission·Focus 3 (2nd edition) - Workbook

Câu hỏi

Complete the sentences with the correct forms of must or have to.

Câu trả lời

  1. must
  2. have to
  3. have to
  4. must
  5. has to
  6. have to
  7. have to

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