这顿饭每人20美元。

The meal will cost $20 ___per person.

这辆车以每小时70英里的速度行驶。

The car was travelling at 70 miles ___per hour.

这里每平方英里的咖啡馆比该国任何其他地方都多。

There are more cafés ___per square mile here than anywhere else in the country.