Question

Which compound sentences are correct? Choose two answers.

A. The pilot slowly cuts back on the engine, and the propeller slows
down.
O B. The pilot slowly cuts back on the engine and the propeller slows
down.
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C. Airplanes seem heavy they can fly using the wind.
D. Airplanes seem heavy, but they can fly using the wind.

Answer 1

D. Airplanes seem heavy, but they can fly using the wind.