Let me know that you received and understood this message. Please send every word or group of words twice or, since communication is difficult, every word or group of words in this message will be sent twice.ДЄuthorized to proceed under the conditions specified. I should like to know, or I wish to obtain.Д¬ommunication is difficult. Repeat it all, or the specified part of this message back to me exactly as received.ДЄnnul the previous transmitted clearance. I understand your message and will comply with it. No, or permission is not granted, or your last transmission was not correct. I hereby indicate the separation between messages transmitted to different aircraft in a very busy environment. What is the readability of my transmission. Repeat all, or the following part, of your last transmission. The correct version isвЂ¦ДЄ change has been made to your last clearance and this new clearance supersedes your previous clearance or part thereof. I have received all of our last transmission.ДЄn error has been made in this transmission.

I hereby indicate the separation between parts of the message. Have I correctly received the following, or did you correctly receive this message? As you listen, circle the frequencies you hear.Д®XERCISE 1 What do the following standard words and phrases mean? Use the clues in column B to help you. ВІ EXERCISE 10 You will hear four frequencies from the table. ВІ EXERCISE 9 Listen to the recording, write it down and read back. Lufthansa 720 contact 128.3 for Beijing Control. Roger, _, climb to 7200 metres and maintain, call you 7200 metres, correction _, Lufthansa 720. Lufthansa 720 join _, climb to and maintain _, report passing _. Station calling Ground, _ again your callsign.

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