_________difficult questions the teacher is asking! Only a few students can answer them!
---Tony is under the weather today. He needs to go to the hospital to see a doctor.---I’m sorry to hear that.
---Jack, you are certainly an early bird.---Really? My alarm clock rang at 6:00 this morning.
---Have a ballon your trip to Lijiang.---Thanks.
---My mother is ill.---- ________________
---- I have a sore back.----You should ______ down and rest.