1.I'm sorry the number is engaged.
2.I must have got the wrong area code. 3.Will you check the number again, please? 4.I'd like to place an overseas call to London. 5.Could you put through a collect call for me? 6.You have a collect call from Bill Smith in Chicago. 7.I suggest you check the number in the phone book. 8.I'd like to make a person-to-person call to Beijing, China. 9.The charges vary according to the types of call you make. 10.The cheapest is a station-to-station call, then a person-to-person call.

抱歉，电话占线。
我可能是拨错区号了。 请您再核实一下电话号码好吗？ 我想打一通往伦敦的国际电话。 你能帮我接通一个对方付费电话吗？ 您有来自芝加哥比尔史密斯先生的一个对方付费电话。 我建议您查一下电话簿。 我想打一个通往中国北京的定人呼叫电话。 根据您打电话的种类，费用有所差别。 最便宜的是叫号电话，然后是定人呼叫电话。