Xiaoqing Headded a note hace 8 años

149-3
153-1
155-3
156-2

I got the correct answers, but I need the translation to understand properly :)

147 The created comission must make analyse of the existing laws and systematize them...(СИСТЕМАТИЗИРОВАТЬ ИХ)

Потому что согласно законодательству русскоязычных стран (например, согласно абзацу 24 части 1 статьи 1 Закона Республики Беларусь "О нормативных правовых актах Республики Беларусь"), систематизация законодательства – это и есть деятельность по упорядочению нормативных правовых актов.
Because according to the legislation of Russian-speaking countries (for example, according to the paragraph 24 of part 1 of Article 1 of the Law of the Republic of Belarus "On Regulatory Legal Acts of the Republic of Belarus"), the systematization of legislation acts – this is the activity to streamline regulatory legal acts.

Let's see... well
The collocation проявить себя means that a person can show his abilities, experience, quality and many other features in the society. Sometimes people try to проявить себя to get public recognition and to be useful for an employer, for example, to be a worthless person in the society.
The sentence sounds like

Not all people succeed in showing themselves somehow.
If you get me, let me now, please)

The 153th
It seems to me he isn't aware of (in) his act.
'In' isn't right here, but it shows you Russian version, which help you complete the task
But here you should remember russian cases (падежи) and use prepositional case. It answers the questions о(about) ком, о чем or in this case в(in) ком, в чем

155th
They are ready to work but they don't have any possibility for(для) it.
This case quite easy to explain)

156th is the last one and the most difficult to explain, you know))) but anyway, let's try

She should know this.

In Russian you should use infinitive to know - знать

Yulia, thanks a lot for the explanation of проявить and the rest. Cheers !