Question

Complete the sentences with the first conditional form. 1.Unless your friend (to have) an invitation, he (no to be able to) go to the party. 2.She (to be) late for the lesson if she (not tp leave) earlier. 3.If you (to be) angry, they (not to let) you in the house. 4.He (not to open) the book unless he (to know) what tasks to do. 5.We (to have to) stay home if the weather (to get) worse. 6.Unless you (to be) more careful with the knife, you (to cut) yourself. 7. If (I tell) you a secret, (you/ to promise) to keep it? 8.If my mother (not to have to) work next weekend, we (to be able to) go to the funfair.

Answer 1

1. Unless your friend has an invitation, he will not be able to go to the party.

2. She will be late for the lesson if she doesn't leave earlier.

3. If you are angry, they will not let you in the house.

4. He will not open the book unless he knows what tasks to do.

5. We shall/will have to stay home if the weather gets worse.

6. Unless you are more careful with the knife, you will cut yourself.

7. If I tell you a secret,  will  you  promise to keep it?

8. If my mother does not have to work next weekend, we shall/will be able to go to the funfair.

Пояснение:

1 тип Условных:

[If /Unless+ Present Simple], + [Future Simple]    

Answer 2

1. Unless your friend has an invitation, he won't be able to go to the party.
2. She will be late for the lesson if she doesn't leave earlier.
3. If you are angry, they won't let you in the house.
4. He won't open the book unless he knows what tasks to do.
5. We will have to stay home if the weather gets worse.
6. Unless you are more careful with the knife, you will cut yourself.
7. If I tell you a secret, will you promise to keep it?
8. If my mother doesn't have to work next weekend, we will be able to go to the funfair.