. In order to _____ the rising production costs, the subscription rates have been increased.
We should think hard ________ human activity has caused greenhouse effect.
The date for the next round six-party talk ________ but whether progress will be made remains ___________.
If I can help_______, I don't like working late into the night.
—Does the idea of working abroad________you? —Yes. But I have no chance.
China made its firm ____ to cut carbon emissions in 2009.