Answer:
Soccer is a sport known world wide, with many admirers across the globe. The game includes loads of physical contact.
Answer:
Because of this, the only way to understand Sino- European relations in the twenty-first century is to look into their history
To combine these sentences together to flow neatly and be grammatically correct you could say: Early airships such as zeppelins were filled with hydrogen, but today's blimps use helium instead. This is the correct answer out of your choices.
Your answer is: Early airships such as zeppelins were filled with hydrogen, but today's blimps use helium instead.
Have an amazing day and stay hopeful!