we use 'have' with plural and 'has' with singular.. but when we write negative sentence we use 'doesn't' with he, she and it. 'does' is a singular verb and we don't use two singular verb at the same time. so we say 'doesn't have'

there is written baithi hai... n it is a present continuous tense... so is+ v1 +ing

say kehnaa.. tell btana

strange

after completing your studies, you will do a job.

in this lesson nati means chhoti.. short in height

A is used with every singular noun.. no matter if ek is written or not

my house is at a stone's throw to geeta's house

jb kisi chiz ya person ki existence btani ho.. for example. there is a boy - ek ladka hai

in\ inside and the street respectively