Grammar

1. How is your studies? or How are your studies?

2. I met a friend in a party and would like to ask her if her sister accompanied her.
Has she come? or Did she come?

3. Talking about qualification.
I have done MBA or I did MBA

4. I caught cold (Is it the right usage)

5. I met a friend on the road after a long time and would like to tell her about other friends.
I haven't met any of our friends.
or
I didn't meet any of our friends.

Guys please help me with grammar. Learning English..........

1. How are you studies going?

2. Has you your sister also come along (although 'Did she also come along' is also acceptable and I suspect more usual in American English)

3. Depends on context. If you're just talking about it now in general, you would say 'I have done an MBA'. If you are talking about a specific time when you did it, the simple past i.e 'I did an MBA in 2004'

4. Again could be either I caught/I have caught depending on context. I would say 'I caught A cold', not usre if all dialects do though.

5. I haven't met any of our friends.