просто напишите так

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1. I didn’t want to wake up anybody, so I came in as -) Quietly -- as I could. : 2. Last year he spent -)less -- time on English than this year. 3. Smiles is - the longest - word in the English language because there is a mile between two 

1. They said(Past indefinite -Active voice ) the book had been published ( Past perfect -Passive voice )by the end of the month.
2. I did (Past Indefinite -Active Voice )it all by myself.
3. Have you heard (Present Perfect -Active voice )the latest news?
4. They are waiting (Present Continious -Active voice )for us.
5. Before the experiment the substances are mixed(Present Indefinite -Passive voice ) in a large cup.
6. Dinner is being cooked.(Present Continious -Passive voice ) .Wait a little.

He can not speak neither English nor German.He never studied foreign languages.Neither my sister nor my brother were not offended by my words.This book belongs to either John or Mary.He offered me help and advice.Neither the president nor the government can not postpone this law.You should respect the laws of our country.Bob did not feel lonely or unhappy in any new school.Or I accept your invitation or cast himI almost never read a boring book.Tom has no sense of humor, no respect for their elders.