Make up a) a general question, b) a special question to the italicized part, c) a subject question and d) a tag question to sentences a, b and c. a the company offers a nice working environment. b i have a good knowledge of excel and word. c business correspondence is the most challenging part of work for steven.

He won't go to university unless he works hard
They will wait until he comes back.
She won't go to the park if it rains.
I'll give you the book if I find it.
You will have to take the taxi if you miss the bus.(First Conditional)
Первое и второе предложения используют только в первом типе.
She would not go to the park if it rained
I would give you the book if I found it.
You would have to take the taxi if you missed the bus.( Second Conditional)
She would not have gone to the park if it had rained
I would have given the book if I had found it ( Third Conditional) 

1. No, I don't. I haven't built it yet.

2. No, he doesn't. He hasn't learnt it yet.

3. No, she doesn't. She hasn't bought it yet.

4. No, I don't. I haven't mastered English yet.

5. No, they don't. They haven't grown rich yet.

6. No, she doesn't. She hasn't entered here yet.

7. No, they don't. They haven't moved yet.

8. No, I don't. I haven't passed last exam yet.

9. No, he doesn't. He hasn't applied for it yet.

10. No, I don't. I haven't seen her yet.

11. No, they don't. They haven't ridden yet.

12. No, they don't. They haven't discussed it yet.

13. No, I don't. I haven't joined a party yet.

14. No, she don't. I haven't told her yet.

15. No, I don't. I haven't tasted it yet.