在职研究生英语（二）
阅读短文，选出填入空格最合适的一项： The city council has …
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阅读短文，选出填入空格最合适的一项：
The city council has approved new parking rules for the old town. Drivers will need a permit to park on most streets, and the fine for parking without one will double. The rules were announced in January, but they will not take ___ until the start of April, giving residents almost three months to apply for permits. Officials hope the changes will make the narrow streets safer for people on foot.
词汇辨析固定搭配完形填空