---Mr. White didn’t come last night, did he? ---No. We for him. A whole night was wasted. A. had waited B. have been waiting C. were waiting D, had been waiting
---How many eggs are still there in the fridge, Bill? --_____.
About ___ of the teahers is our school ___ young people under thirty.
___Mr. Chen is waiting outside to speak to you. He appears to be quite ___ important person.
Suan! Where have you been? You have no idea ___ worried I was !
___ my opinion, Americans eat too much meat.