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!
Hearing the voice can help to conceive the emotion of the character
Answer:
I don't understand the question, I've never been to London
Explanation:
But if you're trying to make a sentence it would be"Which hotel did you stay at while in London last month?"
Complete the sentences. Use the passive voice. Omit the agent where necessary.
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