Question

Put the sentences into the interrogative and the negative:

The reslarcher has sent the information to the newspaper.
R:
R:

They have found a new forn of radiation.
R:
R:

He has been to new york three times.
R:
R:

The johnsons have tried to call you since o' clock
R:
R:

Ann has solved this problem many times.

Answer 1

The researcher has sent the information to the newspaper.
I: Has the researcher sent any information to the newspaper?
N: The researcher has not sent information to the newspaper.

They have found a new form of radiation.
I: Have they found a new form of radiation?
N: They haven't found any new form of radiation.

He has been to new york three times. 
I: How many times has he been to New York?
N: He has never been to New York.

The johnsons have tried to call you since XX o' clock 
I: How long have the Johnsons been trying to call?
N: The Johnsons haven't tried to call.

Ann has solved this problem many times.
I: Has Ann ever solved this problem?
N: Ann has never solved this problem.