Это правило- согласование времен. Правильный ответ: D. Вопрос, который она задала в прямой речи звучит так: " will you be able to do it?". Значит по правилу will мы заменяем на would( при условии, что сказуемое в Past simple), а вопрос передлываем)
Думаю как-то так:
1 b
2 c
3
4
5
6 a
7 c
8
9 a
10 b
11 b
12 c
13
14 a
15 a
16 a
17 c
18 a
19 a
20 c
1)
I will wait here until you come.
2)
I will go home when I finish my work.
3)
Will you go to the restaurant if they invite you?
4)
We will come to see you when we are in England again.
6)
When I see you tomorrow I will show the catalogue.
7)
Would you like something to drink before you go?
8)
It will be difficult to find a hotel if we arrive late.
9)
I’m going to Paris next month. While I’m there, I will visit the international
exhibition.
10)
Don’t forget to give me your address. OK, I will give it to you before I go.
<span>11)
If I don’t see you tomorrow I will phone you.</span>
2.My sister doesn't like computer games, she likes films.
3.My parents don't work in London, they work in Glasgow.
4.We don't learn Spanish at school, we learn French at school.
5.Your day doesn't start at 6 o'clock, your Day starts at 7 o'clock.
6.Our teacher doesn't go to the cinema on Sunday, our teacher goes to the cinema on Saturday.
7.I don't my homework, I do my homework at home.
8.I don't chat online with my brother, I chat with my friends.
The keys in the garden were lost by somebody.
An email will be sent tomorrow somebody.
This book has been borrowed somebody.
A fine will be charged by them.
Phone calls are made by them every day
When was the book published?
What was used to make pizza?
An interesting story will be read to them by him.
A trip to Moscow was promised her by her mother.
A lot of letters will be sent to Misha by them.
Bread is always bought by us for her.
These trainers were sold by them very cheaply.
This idea is always insisted on by them, but we don’t agree with it.