Помогите с тестом по английскому:
1. They would have responded to the request if they ... it.
a) have received    b) would receive    c) had received
2. The prime minister denied ... anything wrong.
a) to do    b) having done    c) to have done
3. Нам испытали прибор.
a) We have the device testing    b) We have the device being tested. c) We have had the device tested.
4. I don't like you ... such things.
a) to say    b) say    c) saying
5. I was busy writing an essay, but I had to stop ... the phone.
a) answer    b) answering    c) to answer