I tried to call on you last week but your dog simply ____ not let me come through the gate.

Wen Jiabao told the orphans in Wenchuan  Earthquake not to cry.His words ____not  have calmed them instantly,but his concern  about common people was obviously seen.

Mark ______ have hurried. After driving at top speed, he arrived half an hour early.

 ---How much shall I pay for the phone call? ----You ____ .This is free of charge.

______ you need any help, you can always phone me at the office.