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.

We must wear our uniforms during surgical procedures for hygiene purposes.
The inner layer of the skin provides protection against pathogens.
Blood donation is a voluntary act that can save lives.
The intrinsic properties of the drug determine its efficacy.
We aim to accomplish the surgery without complications.
The embryo develops rapidly during the early stages of pregnancy.
Our patient population is diverse, representing various cultural backgrounds.
You can enrol in the clinical trial if you meet the eligibility criteria.
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