Put the words and phrases into two groups :positive or negative. crowded, noisy streets, an excellent public transport system, heavy traffic, polluted, everything close
at hand, unfriendly people, helpful neighbours,
safe, clean, dangerous, feel isolated, feel bored,
lots of restaurants and clubs, clean air, unspoiled
countryside, beautiful views, peaceful life, tiring
office jobs, picturesque places, easy to get around,
packed with cars, many pedestrian areas, a built-up
area, a quiet neighbourhood​

Объяснение:

1. We have known each other for four years.

2. I always wanted to learn English.

3.Where is Nina?

- She's been home for two hours.

4.Where are the children?

-They are still playing in the yard.

5. My brother has been an engineer for three years.

6. My friend knows English from childhood.

7. I've been watching you for half an hour.

8. Is your brother still sick?

"No, he’s already got better. He’s been studying physics for three days. He wants to get an excellent grade in the exam."

10. I've been trying to find my old notebook for twenty minutes

We form the comparative of adverbs ending  in-ly with adverbs and the superlative with most.                                                                                           We form the comparative of other adverbs with -er and the superlative with -est.                               The adverbs well, badly and little have irregular comparative and superlative forms.                                                                                                                     We can use (not) as + adverb +as to make compare two actions or situations.   We can also make negative comparisons with adjectives and least.