1 . Today, we must continue ________ to keep our skies blue, waters clean and lands clear.
| A．work | B．working | C．to work | D．worked |
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2 . There was no hope of finding the lost child, but people continued ________ for him.
| A．searching | B．searched | C．to searching | D．search |
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3 . If we continue ________ down trees, birds will have nowhere to live. (cut)
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4 . The old man continued ________ (tie) the cow to the tree.
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5 . 她想要继续工作到60岁。
She wanted to________ ________ ________ she was 60.
She wanted to
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6 . 李老师生病了，但她仍然继续工作。
Miss Li was ill, but she still________ ________ .
Miss Li was ill, but she still
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7 . 这场雪一直下，下了整整一天。
The snow________ ________ the whole day.
The snow
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8 . He continued ________ (work) when he was ill.
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9 . 休息过后，这个老人继续把羊绑在了树上。
After a rest, the old man________________ to the tree.
After a rest, the old man
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10 . 鲍勃没听见我说话，继续向学校走去。
Bob didn’t hear me and
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