All the employees except the manager ________ to work online at home.

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The crazy fans ________ patiently for two hours, and they would wait till the movie star arrived.

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Sales of CDs have greatly increased since the early 1990s, when people ________ to enjoy the advantages of this new technology.

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It is said in the book that Thomas Edison (1847 年～ 1931年) ________ the world leading inventor for sixty years.

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The teacher, with 6 girls and 8 boys of her class, ________ visiting a museum when the earth quake struck.

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The first use of atomic weapons was in 1945 and their power ________ increased enormously ever since.

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—The window is dirty.

—I know. It ________ for weeks.

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I thought Jim would say something about his school report, but he ________ it.

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I feel it is your husband who ________ for the spoiled child.

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He will have learned English for eight years by the time he ________ from the university next year.

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