---Our government has come up with many ways to stop the pollution.
----Yeah,and they all work really well.
| A．caught up with | B．worked out |
| C．thought up | D．asked about |
---Our government has come up with many ways to stop the pollution.
----Yeah,and they all work really well.
| A．caught up with | B．worked out |
| C．thought up | D．asked about |
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