C. describing how exciting it can be
A. You will not be able to dive deeply enough.
B. You will not be able to float properly.
A. take a deep breath
B. take two deep breaths
A. it is extremely dangerous
B. many people who do it suffer from oxygen shortage
C. take repeated deep breaths
A. You will not be able to dive deeply enough.
B. You will not be able to float properly.
A. doing it in tropical seas
B. explaining the technique to a beginner
A. it is extremely dangerous
B. many people who do it suffer from oxygen shortage
C. You will use up too much oxygen.
A. doing it in tropical seas
B. explaining the technique to a beginner
A. take a deep breath
B. take two deep breaths
A. it is extremely dangerous
B. many people who do it suffer from oxygen shortage
C. you have to buy special clothes in order to do it
A. You will not be able to dive deeply enough.
B. You will not be able to float properly.
A. doing it in tropical seas
B. explaining the technique to a beginner
A. take a deep breath
B. take two deep breaths
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