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touseinJanuary,2010,theroadhassolvedthelongstandingproblemoftrafficjamsofthisarea.[]A．PutB．PuttingC．HavingputD．Beingput
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| ______ to use in January, 2010, the road has solved the longstanding problem of traffic jams of this area. |
| [ ] |
| A．Put B．Putting C．Having put D．Being put |
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| A |
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