It is said that two man-made structures are clearly visible from space. One is the Great Wall of China, andis Japan's Kansai International Airport.
Teachers have to constantly update their knowledge in order to maintain their professional ___.
Though told to stop, the excited speaker ___ talking.
He thought he heard someone following him, and ___ round. He caught sight of a dark figure in the shadow.
What does it matter whether you are rich or poor, ___ you are happy.
She wondered how it ___ that her husband met with trouble again.