单项选择 较易0.85 引用2 组卷377
China’s New Food Act provides for a food recall system producers have to stop production their food isn’t up to standards.
| A．that; if | B．where; if | C．which; when | D．when; where |
2010·黑龙江·一模
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If we ________ now to work out, we’ll live to regret it.
| A．hadn’t acted | B．haven’t acted | C．don’t act | D．won’t act |
If we to protect the environment, we will live to regret it.
| A．hadn’t acted | B．haven’t acted |
| C．don’t act | D．won’t act |
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