It is high time for us to take measures to protect these old traditions and customs before they _____.
Tom raised his handsto say something, but he remained silent in the end.
Not until the early years of the 19th century ________ what heat was.
_______ in a friendly way, their quarrel came to an end.
I sight of an empty seat at the back of the bus and went directly there. A. lost B caught C. looked D. took
—Have you heard the story of "The Merchant of Venice" —No. When and where does the story ______ ?