Exercise 247. Transform the following complex sentences into simple ones using the gerund.
A. Mo de 1: I am sorry that I trouble you.— Excuse me for
troubling you.
1. I am sorry that I ring you up so late. 2. I am sorry that I turned
on the radio when you are working. 3. I am sorry that I came so late.
4. I am sorry that I broke your pencil. 5. I am sorry that I went home
without waiting for you.
B. Model: I am sorry that I did not tell you about it. - I am
sorry for not telling you about it.
1. I am sorry that I did not help you yesterday. 2. I am sorry
I didn't wait for you. 3. I am sorry that I did not do my homework.
4. I am sorry that I did not ring you up. 5. I am sorry that I did not
answer your letter

Paul and Oliver often have picnics in the picnic area in summer.
Paul and Oliver usually play sports at the sports center on holiday.
Paul sometimes watches birds in the Wales parks in August.
Paul and Oliver always have countryside walks in the Wales parks at weekends.
Oliver often rides a bike in the Wales parks in summer.
Paul sometimes rides a horse  in the Wales parks on holiday.
Paul and Oliver usually fish in the Wales parks every summer.
Oliver often climbs mountains in the Wales parks in summer.
Paul and Oliver sometimes buy souvenirs in the Wales parks on holiday.

Christmas is(тк he, she, it – is, а в нашем случае Christmas - "it")  my favourite holiday. We are(тк we, you, they-are, а в нашем случае "we") at home. We have(тк we, you, they-have got, а в нашем случае "we") got a beautiful Christmas tree. The house is (тк he, she, it – is, а в нашем случае house-"it") clean and tidy. Before the Christmas my mum and dad go to( тк "to" обозначает направление действия) the shop. Then mum cooks(тк это Present Simple, а в этом времени мы к he, she, it добавляем "s", то есть как бы заменяем "does") Christmas dinner. We help her(тк he "он"-him "ему", а she "она"-her "ей"). I set ( lay- положить, а set-накрывать) the table. In the afternoon we sit down at the table (здесь я не нашла ошибку). Our pets are (тк we, you, they-are, а в нашем случае pets-"they")  with us too. After dinner my brother washes (тк это Present Simple, а в этом времени мы к he, she, it добавляем "s", то есть как бы заменяем "does") the dishes.