5. определите время и залог подчеркнутого сказуемого:
1. steam is water in the gas phase, which is formed when water boils.
2. piston type steam engines played a central role to the industrial revolution.

Put the verbs in brackets into the correct tense form.

Last Sunday, hundreds of fans (1) (went) to Ukraina Palace in Kyiv to see the famous Ukrainian band “Ocean Elzy”. There (2) (was) not an empty seat anywhere in the auditorium. “Sure, it’s cold outside, but I hope we’ll warm it up here for you,” said Sviatoslav Vakarchuk, the band leader. The band (3) (sang) a lot of well-known songs from their albums. The wonderful music and the songs’ words (4) (told) the listeners about the eternal values: understanding, friendship and love. The sound (5) (was) perfect. The audience really (6) (loved) the concert. Many people in the crowd (7) (were) real fans and they (8) (knew) the words and they (9) (sang) along to nearly every song. At the end of the concert, “Ocean Elzy” (10) (showed) that they (11) (were) true performers. They (12) (finished) with a new song – a song from their album “Mira”. I (13) (knew) that I (14) (had seen) the performance of real stars.

 Простая форма

1. soft, softer, the softest;

2. new, newer, the newest;

3. dirty, dirtier, the dirtiest;

4. calm,calmer, the calmest;

5. deep, deeper, the deepest.

Сложная форма

1. dangerous, more dangerous, the most dangerous;

2. frightened, more frightened, the most frightened;

3. effective, more effective, the most effective;

4. handsome, more handsome, the most handsome;

5. interesting, more interesting, the most interesting.

Объяснение:

В зависимости от прилагательного, выделяют 2 формы сравнительной степени:

1. Простая форма сравнительной степени   образуется с прилагательными, которые состоят из одного, двух или трех слогов.

2. Сложная форма сравнительной степени  образуется с прилагательными, которые состоят из трех и более слогов.