Выполнить цепочку превращений C-CO2-Na2CO3-CaCO3-CaO Спасибо!

На стене висят двое часов. Одни часы показывают точное время, а другие спешат. Сейчас угол между часовыми стрелками этих часов равен 72 градусам. Чему равен угол между минутными стрелками этих часов?

 1 They will not deliver the new sofa on Friday.

 2 You can use this saucepan for cooking spaghetti.

 3 I have to finish my homework tonight.

 4 You must tidy your bedroom.

 5 You ought to put these clothes away.

 6 The boss gave the secretary some letters to type.

 7 We should eat this cake immediately.

 8 Sally sent Peter a birthday card.

 9 You must take the dog for a walk.

10 The cat is not chasing the mouse.

11 Do they produce oil in Spain?

12 Did a dog bite him?

13 Edward has not recorded a new song.

14.Someone left the front door open.

15.Jenny didn't break the window.

16.Someone is using the computer.

17.His brother taught him to drive.

18.Many people speak English.

19.The doctor had already told him to go on a diet.

20.The author is writing a new book.

REWRITE THE SENTENCES IN THE PASSIVE.

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