What is the best reason it is helpful to practice a presentation in front of a friend of family member

Family members are people you are more comfortable with so it's easier to present to them instead of strangers.

Explanation:

answer: hmm i’ve done that before.. i’ll answer back when i move got it. i know i have the answer.. it’s on the tip of my tongue! don’t worry.. i’ll try to answer asap!

explanation:

the present continuous is a verb tense which is mainly used to indicates that an action is in progress at the moment of speaking.  

it is formed using: person + verb to be (am/is/are) +verb + - ing form  

example: i am studying at this moment .

in addition, the present continuous is also used in order to express things that will or will not happen in the near future.

example: i am having dinner with some friends tonight.

the speaker sometimes   uses it   to express that an action is repeated and it causes irritation on the part of the speaker

example: my sister is constantly complaining about everything.