我可以要求一个靠窗的座位吗？

Can I ___request a window seat?

酒店要求客人晚上10点后保持安静。

The hotel ___requested that guests be quiet after 10 PM.

乘客被要求在起飞时系好安全带。

Passengers are ___requested to fasten their seatbelts during takeoff.