As we grow older,we learn the of our abilities.
| A．heights | B．scores | C．limits | D．lengths |
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In _______ summer of 1963 Martin Luther King Jr. gave _______ speech to many black people.
| A．不填; a | B．不填; the | C．the; the | D．the; a |
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－Don’t be late for the meeting this afternoon!
－_______
| A．No, I won’t. | B．Yes, I won’t . | C．No, I don’t. | D．Yes, I do. |
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Water as well as other resources ______ all over the world every day.
| A．is wasted | B．are wasted | C．waste | D．wastes |
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The teaching building is _________ by many trees, some ______ over 30 metres.
| A．surrounded, measuring | B．surrounded, measured |
| C．surrounding, measured | D．surrounded, measure |
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They ________ to finish the project before Sunday, but they didn’t make it because of the heavy snow.
| A．succeeded | B．tried | C．managed | D．thought |