What did you do yesterday—My brother took two friends of ______ to play chess with us. But I don’t’ know ___ of them.

下列各句中成语使用恰当的一句是（ ）

Children are always asking all kinds ofquestions because they are ______ about the world they live in.

What do you think of the hospital– Great ! Patients here good treatment.

The exam results will be _____on Friday afternoon.