Rewite the sentences in imperative. Keep the same meaning. Example: You can't step on the grass.
Don't step on the grass!
1. You should study every day.
2.You mustn't smoke.
3. Youmust go to bed right now.
4. You should get up early.
5. You mustn't stop here.
6. You can have some drink.
7. You must water the flowers.
8. You needn't wait for him.
9. You must have a shower first.
10. You can't park on this street.
11. You must be here as soon as possible.
12. You should taste this cake.

Можно сделать что-то вроде этого:
— Hi!
— Hello!
— How are you?
— Fine, and you?
— I moved into a new house.
— Really?
— Yeah.
— And where are you living now?
— On the Main Street, house number 39.
— Where is it?
— If you are going from your house, you'll have to pass one house, turn left, pass four more houses and you'll be in mine home.
— Oh, there is shop nearly, yeah?
— Yeah, and it's close to the theater and for the nearest cinema 10 minutes.
— Cool, so I'll come to you tomorrow, ok?
— Of course, and we can go to the zoo.
— Yeah, nice idea, lad.

Present Perfect употребляется:
1) Для выражения действия, завершившегося к моменту речи, употребляется со следующими временными маркерами: just - только что, already - уже, yet - ещё, lately - недавно, of late - в последнее время, recently - недавно.
Примеры Present Perfect:
I have just had lunch – Я только что пообедал
He has already posted it – Он уже отправил это
Have you just arrived? – Ты только что приехал?
3) Для выражения действия, которое завершилось, но тот период, в котором оно происходило, ещё продолжается, употребляется со следующими временными маркерами: today - сегодня, this week - на этой неделе, this month - в этом месяце.
Примеры Present Perfect: 
I have spent all my money this morning – Я потратил все мои деньги этим утром (еще утро)
I have written two poems this week – Я написал два стихотворения на этой неделе
I have caught cold today – Я простудился сегодня