Informal letter

Best wishes.This is informal.This is true or not

I'm only too glad to help .this informal or not

I would be greatful if you.... This is formal or not

We usually use the past simple to talk about recent work or studies.True or False

I am writing to apply for the job..... Which types of letter this

We usually use the present simple to describe skills/personal qualities.True or false

I look forward to hearing from you.This is formal or not

I'll write as soon as I can....This is informal .This is true or false

We usually use the present perfect to talk about past experiences.True or False

Drop me a line sometime .This is informal or not