Write (T) for the true statements and (F) for the false sta...

Write (T) for the true statements and (F) for the false statements, according to the text.

( ) Radiotelephone communications need to be efficient and brief.

( ) The sound in radiotelephone communications may not be good.

( ) In radiotelephone communications, there is no body language.

( ) Radiotelephone communications do not require a good level of language proficiency.

Choose the correct alternative, according to the order of the sentences.