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 surgical procedure involved removing the tumour from the patient’s lung.
The pharmacist will drug the patient before the surgery to induce anaesthesia.
The ratio of red blood cells to white blood cells is abnormal in this patient.
The pathologist examined the tissue section under the microscope.
The blood agar medium is commonly used for culturing bacteria.
The MRI detected a malignant tumour in the patient’s brain.
The surgeon used a minimally invasive technique to repair the hernia.
The rapid test yielded a false positive result for HIV.
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