She has just swum in the swimming pool.
She hasn't swum in the swimming pool already.
Has she swum in the swimming pool yet?
21 a 22b 23b 24b 25d 27b 29b 30c
1. My school is big and comfortable. Our teachers are very polite and kind to school children. I most liked thing is school's stadium.
2. Yes of course. I have a lot of friends. We speak each other about home works every day.
3. I and my school friends usually play football in our school's stadium, and sometimes we go to the cinema.
1. Anybody
2. any/some
3. nobody
4. something
5. some
1. many
2. a lot of
3. much
4. much/ a lot of
5. much
6/ alot of/ many
1. is fly, are fly
2. is cry, are cry
3. is see, is begin
4. are
5. are lay
6. are fight, are shout
7. is try
8. are try