Frank starts his calls by saying, "Hi, this is Frank, it is good to hear from you but I have only ten minutes to talk." This is an example of?

What functions do diagrams serve in a presentation?

What will be an ideal response?

In which situation below can you be most casual about your language?

A. at the dinner table with relatives during a religious holiday B. telling your own young children how to use the computer C. with your best friends on a vacation D. asking directions from a well-dressed stranger at the airport