1) since is used for a point in time, to indicate a time from the past, till now. to tell simple, the work that is started at the point of time. eg: he has been waiting here since 8 o' clock. I have known him since 2016. 2) from is used to indicate a place. eg: he came from the college.

concentrate on ur exams first and keep ur MBL away from u. especially, during exams it is not good to use. if u work hard, one day u will achieve ur goal... keep it in ur mind..!!

get well soon

which language is this?

here, we can either use my friend or a friend of mine. in this case, we can use my friend/friends for singular or plural verb, and 'a friend of mine' is used to only singular verb and single frnd. eg: a friend of mine presented me a gift. and my frnd/ frnds presented me a gift.

she works : simple present tense. she is working: present continuous.

My nephew was very sick.

according to the English grammar, "Was and were are used for place and position". furthermore, was can be used for singular sub, were can be used for plural sub.. 1) eg: i/she/he was happy or at home. 2) eg: you/we/they were happy or at home.

does he/she have a car?

when we ask a question, we should use the symbol "?", which is called interrogation mark or question mark. as u questioned 'what is ur name?' is ri8 way.