Listen to the sentences and complete them with the correct word or words (there will be between 1 and 4 missing).
Spelling is important both in the OET and in your working lives, and this exercise will help you to improve.

The doctor prescribed a new drug to manage the patient’s symptoms.
The pharmacist will drug the patient before the surgery to induce anaesthesia.
The doctor will approximate the size of the tumour during the physical examination.
The patient underwent a liver transplant to replace the damaged organ.
The molecular structure of the protein was determined using X-ray crystallography.
The patient’s condition improved overall after receiving physical therapy.
Early screening can detect cancerous cells before they spread.
The radiologist will contrast the images to identify any abnormalities.
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