где птицам хорошо живется??

аргументируйте 

выбирите правильный ответ

1.Their family has been living in this house since the 18-th century...?

A-haven't they

B-hasn't it

C-don't they

D-isn't it

2.They promised that they...at nine o'clock.

A-will come

B-came

C-would come

D-would came 

 3.I didn't know where...

A-the children had gone

B-the children went

C-had the children gone

D-did the children go

4.Catherine said that she...to buy an ice-cream.

A-had wanted

B-want

C-wants

D-wanted

5.Sally was happy because he...the first prize

A-has won

B-won

C-had won

D-win

6.Show me the picture of Helen.I...her

A-had never seen

B-didn't ever seen

C-have never seen

D-never saw

7.After Philip...his brother to prison, he...a king

A-sent,became

B-had sent, became

C-sent,had become

D-had sent, had become

Помогите ответить. Что случилось с Ханс Кристиан Андерсоном?

Представте в виде многочлена (3a-2)2. (2 за скобкой - это степень)

Укажите номера неверных утверждений:

1)тангенсом острого угла прямоуг.треугольника наз.отношение прилежащего катета к противолежащему.

2)соседние углы параллелограмма равны между собой.

3)сумма углов треугольника равна 90 градусам.