(单选题)

In an effort to comply with laws that limit short-term leases in Paris, Airbnb imposed ______ automatic cap on the number of days its hosts in the French capital can rent out their homes.

A.a

B.an

C.the

D./

参考答案：B

参考解析：

考查不定冠词an的用法。句意：为了遵守限制巴黎短期租赁的法律，Airbnb对其在法国首都的房客可以租房的天数实行自动上限。设空处考查冠词的泛指用法，又因修饰automatic cap，automatic开头以元音开始，所以使用不定冠词an。故选B。

知识点：