Catching _____ sight of their head teacher coming, the students fell into silence all of _____ sudden.
Selina has recently ___________ Chinese painting to please her grandmother who was born in China.
Please remain ___________ until the aircraft has come to a complete stop.
--- What on earth is that noise? --- Oh, the next flat ___________.
The ____________ on his face told me that he failed in the exam.
The park was named Bing Hong Park ____________ a famous painter Huang Binghong.