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 need to consider the logistic challenges of transporting medical supplies.
Smoking can compromise lung function over time.
Early detection is crucial for successful treatment.
Mature red blood cells lack a nucleus.
Nitrogen gas makes up the majority of the Earth’s atmosphere.
Stress can disrupt the body’s hormonal balance.
The rationale behind this treatment plan is to minimise side effects.
The patient experienced transient numbness in their fingertips.
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