"Has been waiting" should be your answer. a simple predicate is the verb or verb phrase in the sentence and it usually tells what the subject does.
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!
Answer: A tree is a plant so the pod came from plants
Explanation:
Answer:
The early period of the Romantic era was a time of war, with the French Revolution (1789–1799) followed by the Napoleonic Wars until 1815. These wars, along with the political and social turmoil that went along with them, served as the background for Romanticism.
(Hope this helps, give a thanks if it did.)
