Where is Mother—She is in the kitchen. She ______the housework all morning.

Do you know how many peoplethebig fire last week

He was regarded as such a _____student that all of the teachers believedthat his future would be bright.[ ]

下列各组句子中，加横线词的词类活用现象相同的一组是（ ）

The weather in Beijing is not ____ good ____ that in Hainan.