Choose the best response from A to F according to the sentences given.

小题1:How long have you been in this hospital?

小题2:What happened to your friend last Saturday afternoon?

小题3:You haven’t seen him for a long time ,have you?

小题4:May I ask you some questions on the accident?

小题5:What’s the highest mountain in the world?

黄豆酱制备检测样品时，应先研磨后再称量.