a Để điều trị cho những người bị gãy xương, bác sĩ thường băng bó cho bệnh nhân, sau một thời gian xương sẽ lành lại. Em hãy giải thích hiện tượng liền xương khi bị gãy xương.

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Lisa and Trish are students. They’re talking about what to do after university. Write sentences using the words given. (2) If you / find / a job using your languages / you / take it? ........................................................................................ Lisa: (3) If it / be / in South America / I / certainly / consider it carefully. I’ve always wanted to go there. .......................................................................................................... I’ve always wanted to go there. Trish: What about working as a tour guide, taking tourists round? (4) That / be / a great way to travel if you / speak the right languages. ...................................................................................................................... Lisa: But (5) I / only / consider / a job like that if I / be / sure the travel company was a good one. ..................................................................................................................... (6) If the tourists / not / like / their hotels and so on, I / have a terrible time. .......................................................................................................................... Trish: Yes. (7) You / be / handling complaints every day if they / not / be / happy. ......................................................................................................................................... Lisa: Exactly! (8) But if I / decide / to apply for a job like that, / you / help me with my application? .................................................................................................................................................. Trish: Of course. And, I’m sure (9) you / succeed, if you / do. ............................................................................................................................ Lisa: Thanks very much.