1. heck your understanding: grouping Do this exercise before you listen. Write the words in the correct group. lifeguard jazz dancing water aerobics Gym staff dance teacher secretary Pilates weight machines swimming pool Zumba Gym facilities sauna changing rooms personal trainer Gym classes​

Ответ:

Sure, I can help you group these words correctly:

**Gym and Facilities:**

- Gym staff

- Gym facilities

- Weight machines

- Sauna

- Changing rooms

- Personal trainer

**Dance and Fitness Classes:**

- Lifeguard

- Dance teacher

- Pilates

- Zumba

- Gym classes

- Water aerobics

- Jazz dancing

**Swimming and Water-Related:**

- Swimming pool

**Secretary:**

- Secretary

These groupings categorize the words based on their relevance to gym and fitness, dance and fitness classes, swimming, and the role of a secretary.