1 Can you tell me___ you were born, Betty?
A. who B. what C. when D. that
2 I don't know ___ they have passed the exam.
A. what B. if C. when D. where
3 I hardly understand. ___ he has told me.
A. that B. what C. which D. who
4 She didn't know___ back soon.
A. whether he would be   B. if would he be   C. he will be
5. I don't know _____ he still lives here after so many years.
A. whether B where C. what D. when