1-What other changes have there been in the last 100 years?
2-Do you think the quality of life in general is better now than it used to be?
3-Can computers ever replace teachers?
4-Do you agree that there are too many cars?
5-In what ways has life changed for you in the last few years?
6-What do you think will be the biggest changes in the next 100 years?

Somebody asked what other changes there had been in the last 100 years.
They asked if the quality of life in general was better then than it had used to be.
They asked if computers could ever replace teachers.
They asked me if I agreed with the ideea that there were too many cars.
She asked me in what ways life had changed for me in the last few years.
He asked me what the biggest changes would be in the following 100 years.

"Indirect questions do not close with a question mark but with a period. Like direct questions they demand a response, but they are expressed as declarations without the formal characteristics of a question. That is, they have no inversion, no interrogative words, and no special intonation. We can imagine, for example, a situation in which one person asks another, 'Are you going downtown?' (a direct question). The person addressed does not hear and a bystander says, 'He asked if you were going downtown.' That is an indirect question. It requires an answer, but it is expressed as a statement and so is closed by a period, not a query." (Thomas S. Kane, The New Oxford Guide to Writing. Oxford Univ. Press, 1988)

Indirect questions in English

If you want to ask a question that is quite sensitive, try using one of the indirect phrases below:

Can you tell me…
Could you tell me…
I'd be interested to hear…
I'd like to know…
Would you mind telling me…

These questions are followed by either about, a "wh word" or if. Then you add the subject, then the sentence.

Direct and Indirect Questions in English