Suppose, you are Mubin and your friend is Rafi. Now, write a dialogue between you and your friend about the merits/uses and demerits/abuses of using mobile phone.

Mubin : Hello. Who am I speaking to?

Rafi : Hi, Mubin! It's Rafi here. This is my personal number. I've got a mobile phone.

Mubin : Really? Now we can talk whenever we like. Isn't that wonderful?

Rafi : Of course. Actually, the utility of mobile phones cannot be described in words.

Mubin : Right. We can keep in touch with friends and family by a mobile phone.

Rafi : Not only that. Internet browsing has become easier due to android phones.

Mubin : Exactly! What a handy thing!

Rafi : But I'm sure it has some bad sides, too.

Mubin : It does, to be honest.

Rafi : Yes. For example, many people often waste their valuable time by talking to their friends for a long time or using social sites.

Mubin : Hmm: It is also disturbing sometimes. There are some students and even some teachers who do not keep their mobile phones switched off during the class hours.

Rafi : Right! I myself experienced that.

Mubin : Do you know that using mobile isn't good for our body, too?

Rafi, : Really? How?

Mubin : So, we must be cautious while using it.

Rafi : OK, Mubin. We shouldn't talk over phone for long too. Take care and see you tomorrow.

Mubin : Ok, Rafi. See you! Bye!

Rafi : Bye.