Реши задание на изображении

Answer (phrases in order):

1. it is also one of its top ice diving destinations
2. including the freshwater Baikal seal
3. that covers the lake in winter
4. If something goes wrong
5. They also draw lines in the ice
6. some people aren’t afraid of taking them up

Extra phrase: it’s really dangerous because

Why:

• not only … also — two characteristics of Lake Baikal.
• including adds an example of an animal.
• that covers the lake in winter describes the ice.
• If something goes wrong, you can’t just surface… — a condition and its consequence.
• They also draw lines… — the subject and verb are needed before that they can see.
• take up a hobby means “start doing a hobby”; them refers to hobbies.

All the phrases fit grammatically and logically, and only it’s really dangerous because remains unused.