1) After his illness the boy couldn’t keep …with the class.
2) Keep …it, my boy!
3) You should keep…playing football.
4) The doctor advised him to keep…meat for some time.
5) They were kept …by a heavy rain.
6) You should keep your car…
7) I’ll keep …nothing from you.
8) Keep…with this work.
9) Keep …the topic of the conversation.
10) You’d better keep …the quarrel.​

1. 1)  Mary can cook
2) John can't speak English.
3) Can birds fly?

2. Окончание -s:
roses, doors, pianos, ports, mugs, parks
Окончание -es:
bones, noses, dishes

3. Hello! I'm Willy. I like playing with my pet. Her name Is Molly. She's a big white dog. She likes playing with a ball. We always run in the morning in the park. 

4. 1) My name is ...(ваше имя)
2) I'm...(возраст)
3) I'm from ... (Страна,город)
4) Yes, I'm. / No, I'm not.
5) Yes, she is. / No, she isn't. She is a ... (Профессия)
6) No I cannot
7) Yes, I do. I have a ... (Животное) / No, I don't. 

 1 variant

2. 1)Mary can cook

2) JOhn can't speak english

3) Can birds fly?

3. Rose (iz), door (s), bone(s), nose(iz), piano(s), port(s), dish(iz), mug(z), park(s)

4.  Hello! I am Willy. I like to playing with my pet. Her name is Molly. She is a big white dog. She likes playing with a ball. We always run in the morning in the park.

5. 1) What's your name? My name is ...
2) How old are you?  I am 14
3) Where are you from? I am from Kazakhstan
4) Are you a pupil? Yes, i am
5) Is your mum a teacher? No, she's not
6) Can you fly? No, i can't
7) Do you have a pet? No, i haven't