570. Please call before you come,otherwise we might not be home.
请在你来之前打个电话，不然我们有可能不在家。
571. You’re wanted on the telephone.
有你的电话。
572. What number should I dial to get the operator?
我想接通接线员的电话，我应拨打什么号码？
573. I want to make a long distance call.
我想打个长途。
574. Pick up the receiver and deposit a coin in the slot.
拿起话筒，然后将硬币投进硬币口中。
575. I tried to call Mr. Cooper,but the line was busy.
我想给Copper先生打电话，但是线路一直很忙。
576. You must have dialed the wrong number.
你一定打错电话了。
577. I dialed the right number,but nobody answered.
我拨的`号码正确，但是没有人接听。
578. The telephone is ringing,would you answer it,please?
电话铃响了，你能接下电话吗？
579. Would you like to leave a message?
你想留下什么口信儿吗？
580. Who is this?I don’t recognize your voice.
你是谁？我听不出你的声音。
581. Would you please tell Mr. Cooper I called?
你能告诉Cooper先生我打过电话吗？
582. Is this Empire 5-4093?
是帝国5-4093吗？
583. I have to hang up now.
现在我不得不挂断电话。
584. Put the receiver closer to your mouth.I can’t hear you.
将话筒靠近你的嘴，我听不见你的声音。
585. Would you mind calling back sometime tomorrow?
你介意明天再打过来吗？
