Peter is a (quick, quickly) learner. he always does his homework (quick, quickly he listens to his teachers (careful, carefully). when he crosses the street he’s always very (careful, carefully) too. she sings (beautiful, beautifully). he’s got a (beautiful, beautifully) voice. he studies (hard, hardly). he (hard, hardly) studies. ann is a (wonderful, wonderfully) girl! she always looks (wonderful, wonderfully). my mother looked at me (cold, coldly). it is (cold, coldly) today. my brother has a (loud, loudly) voice. the brother shouted (loud, loudly).

1. quick
2. quickly
3. carefully
4. careful
5. beautifully
6. beautiful
7. hard
8. hardly
9. wonderful
10. wonderful
11. coldly
12. cold
13. loud
14. loudly

Peter is a quick learner. He always does his homework quickly. He listens to his teachers carefully. When he crosses the street he is always very careful too. He sings beautifully. He's got a beautiful voice. He studies hard. He hardly studies. Ann is a wonderful girl. She always looks wonderful. My mother looked at me coldly. It is cold today. My brother has a loud voice. The brother shouted loudly

К fat, cold, tall, small добавляйте окончание "er" , чтобы образовать сравнительную степень; в превосходной ставьте перед прилагательным "the" и к самому прилагательному добавляйте окончание "est". Единственное, что в слове "fat" удваивается "t".
К прилагательным important, succesful, traditional, typical, comfortable в сравнительной степени поставьте частицу more перед прилагательными, в превосходной - the most и при этом в обоих случаях прилагательные останутся в форме инфинитива.
Good и bad - исключения. Сравнительная степень good - better, превосходная - the best; сравнительная bad - worse, превосходная - the worst.
Ко всем остальным прилагательными, заканчивающимся на "y", у меняется на "i" и применяется первое правило.

If you (to be) busy, i (to have) you alone.
1 TYPE. IF YOU'RE BUSY, I WILL LEAVE YOU ALONE
2 TYPE. IF YOU WERE BUSY, I WOULD LEFT YOU ALONE
3 TYPE. IF YOU HAD BEEN BUSY, I WOULD HAVE LEFT YOU ALONE

2. If i (to have) in Moscow, i (to visit) the Tretyakov Gallery every year.
1 TYPE. IF I AM IN MOSCOW, I WILL VISIT THE TRETYAKOV GALLERY EVERY YEAR
2 TYPE. IF I WERE IN MOSCOW, I WOULD VISIT THE TRETYAKOV GALLERY EVERY YEAR
3 TYPE. IF I HAD BEEN IN MOSCOW, I WOULD HAVE VISITED THE TRETYAKOV GALLERY EVERY YEAR

3. If i (to get) a ticket, i (to go) to the Philharmonic.
1 TYPE. IF I GET A TICKET, I WILL GO TO THE PHILARMONIC
2 TYPE. IF I GOT A TICKET, I WOULD GO TO THE PHILARMONIC
3 TYPE. IF I HAD GOT A TICKET, I WOULD HAVE GONE TO THE PHILARMONIC

4. If i (to live) near a wood, i (to gather) a lot of mushrooms.
1 TYPE. IF I LIVE NEAR A WOOD, I WILL GATHER A LOT OF MUSHROOMS
2 TYPE. IF I LIVED NEAR A WOOD, I WOULD GATHER A LOT OF MUSHROOMS
3 TYPE. IF I HAD LIVED NEAR A WOOD, I WOULD HAVE GATHERED A LOT OF MUSHROOMS

5. If my father (to return) early, we (to watch) TV together.
1 TYPE. IF MY FATHER RETURNS EARLY, WE WILL WATCH TV TOGETHER.
2 TYPE. IF MY FATHER RETURNED EARLY, WE WOULD WATCH TV TOGETHER
3 TYPE. IF MY FATHER HAD RETURNED EARLY, WE WOULD HAVE WATCHED TV TOGETHER

6. If she (to know) English, she (to try) to enter the university.
1 TYPE. IF SHE KNOWS ENGLISH, SHE WILL TRY TO ENTER THE UNIVERSITY
2 TYPE. IF SHE KNEW ENGLISH, SHE WOULD TRY TO ENTER THE UNIVERSITY
3 TYPE. IF SHE HAD KNOWN ENGLISH, SHE WOULD HAVE TRIED TO ENTER THE UNIVERSITY

7. If my friend (to come) to see me, i (to be) very glad.
1 TYPE. IF MY FRIEND COMES TO SEE ME, I WILL BE VERY GLAD
2 TYPE. IF MY FRIEND CAME TO SEE ME, I WOULD BE VERY GLAD
3 TYPE. IF MY FRIEND HAD COME TO SEE ME, I WOULD HAVE BEEN VERY GLAD

8. If mother (to buy) a cake, we (to have) a very nice teaparty.
1 TYPE. IF MOTHER BUYS A CAKE, WE WILL HAVE A VERY NICE TEAPARTY
2 TYPE. IF MOTHER BOUGHT A CAKE, WE WOULD HAVE A VERY NICE TEAPARTY
3 TYPE. IF MOTHER HAD BOUGHT A CAKE, WE WOULD HAVE HAD A VERY NICE TEAPARTY

9. If we (to receive) a telegram from him, we (not to worry).
1 TYPE. IF WE RECEIVE A TELEGRAM FROM HIM, WE WILL NOT WORRY
2 TYPE. IF WE RECEIVED A TELEGRAM FROM HIM, WE WOULDN'T WORRY
3 TYPE. IF WE HAD RECEIVED A TELEGRAM FROM HIM, WE WOULD HAVEN'T WORRIED

10. If you (not to work) systematically, you (to fail) at the examination.
1 TYPE. IF YOU DONT WORK SYSTEMATICALLY, YOU WILL FAIL THE EXAMINATION
2 TYPE. IF YOU DIDNT WORK SYSTEMATICALLY, YOU WOULD FAIL THE EXAMINATION
3 TYPE. IF YOU HADN'T WORKED SYSTEMATICALLY, YOU WOULD HAVE FAILED EXAMINATION ЭТЖ  КАК Я ДОЛГО ПЕЧАТАЛ