把自行车放在室内真是烦人。

It ___is ___a ___pain to keep bicycles indoors.

我妹妹在旅途中真是烦人。

My little sister ___was being ___a ___pain during the trip.

花那么多钱买那个小玩意真是恼人。

It ___was ___a ___pain to spend so much money on that gadget.