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Well, kinda differs, from person to person. For instance, I have friends who do love cross-fit, sprinting or football. Ofcourse, football is the most popular of them, because it is not something really exhausting like cross-fit. But, there are many others, atletics (from light to heavy-weight), boxing, or MMA. MMA is my favorite one, because during the fight I can appease my feral instincts, and its bloody fun, ofcourse. Not everyone can participate in the MMA matches, because you are required to have good fighting skills, to be fearless, and to be ready to take injuries or even open fractures. Yes, sometimes it happens, but, no pain - no game.

1. Yesterday the lesson began at 9 o"clok.

DID the lesson begin at 9 o*clock?

DID the lesson begin at 9 or 8 o*clock?

When did the lesson begin ?  What began at 9 o*clock?

The lesson begAn at 9 o*clock.didn*t it?

2. You were at the theatre yesterday.

Were you at the theatre yesterday?

Were you  at the theatre or in the cinema  yesterday?

Where were you  yesterday? Who was  at the theatre yesterday?

You were at the theatre yesterday, weren*t you?

3. His sister likes coffee.

Does his sister like coffee?

Does his sister like coffee or tea?

What does his sister like? Who likes coffee?

His sister likes coffee, doesn*t she?

4. He will go to the exhibition next Sunday.

Will he go to the exhibition next Sunday?

Will he  go to the exhibition or  the concert  next Sunday?

When will he go to the exhibition? Who will go to the exhibition next Sunday?

He will go to the exhibition next Sunday. will not he?

5. They are drinking tea now.

Are they  drinking tea now?

Are they are drinking tea or coffee now?

What are they  drinking  now? Who is  drinking tea now?

They are drinking tea now, aren*t  they?

6. His children go to bed early. 

Do his children go to bed early? 

Do his children go to bed early or late? 

When do his children go to bed? Who goes to bed early? 

His children go to bed early, don*t they?