Помогите с простой пунктуацией

9  comparative or superlative form

It's ____________(good) holiday, that I've ever had!

*

I'm really worried It's by far _____________(significant) event in my life

*

Мой ответ

The Chinese language is ___________(difficult) to learn than English.

*

Мой ответ

In spring days become___________(long) and ___________(long)

*

It was ___________(bad) trip of all.

*

Мой ответ

The Moscow is as_____________(attractive) as tourist city as St-Petersburg.

*

Мой ответ

He did his test as_____________(well)as he could

*

Мой ответ

The _______(old) I get, The ________(happy) I am.

*

Мой ответ

I wish some people were _________ (polite) and ___________(gentle)

*

Мой ответ

Lisa is hte least _____________(smart) person in the class.

*

Пусть а – некоторое число. Вычислите

среднее арифметическое и дисперсию

набора чисел:

а) х1 = а +2, х2 = а +3, х3= а + 7

Дано:

A (3;4)

B (7;7)

C (3;7)

Найти: угол A,B,C