As the quality of the city’s air continues to give rise to ______, the residents are encouraged to set off fewer fireworks.
| A．concerns | B．descriptions | C．catastrophe | D．emergency |
. —Have you received Jack’s plan ?
—Yes , but I don’t think his plan is______ .
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-------I bet someone stole my backpack .
-------Well , you ______ have kept an eye on it .
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We all know it will be next June ______ we can really have a rest .
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We’ve been told the good news , but when and where to go for the exciting paid vacation______yet.
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With too many construction projects______ all the strength out of the economy , people of the small country complained a lot .
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