The plane ______ for half an hour before landing A: counted B: circled

Many facts have proved that the earth ______ round the sun. A: moved B: moves C: circled D: is circling

Turkey, officially Republic of Turkey, is a transcontinental Eurasian country. Turkey is bordered by , circled by , the Aegean Sea, and the Mediterranean Sea.

A pair of night birds circled above, the ______ of their wings and their weird screams penetrating the thickening mist. A: slapping B: clapping C: flapping D: flipping