他不停吹口哨是个恼人的习惯。

His constant whistling is an ___irritating habit.

比尔在会议上不停地打断别人，真的很烦人。

Bill's constant interruptions during meetings were really ___irritating.

昨晚蚊子的嗡嗡声非常恼人。

The mosquito's buzzing was incredibly ___irritating last night.