Answer:
1.Beginner , 2.Intermediate , 3.Advanced
These are the three stages of language development
Answer:
Explanation:
What type of person are they?
What is the person's POV?How old are they?
how old are they?
Is - two billion dollars is a unit, one unit so it is singular and you use the singular verb
think - scientists is a plural, therefore, you must use the plural verb form of think
Answer:
I'm pretty sure it's the 4th.
Explanation: