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!
1. (D) The loneliness of human beings
2. (A) The heron feeding on the snake in the pond
3. (D) The rabbits are part of George and Lennie's dream of one day having a farm of their own
=)
Is is a present tense verb.
Past of is is was and future tense of is is will/shall.
Answer:
the CPU
Explanation:
this is the brain of the computer and it controls what the monitor does
