. Her unusual success shows that if someone can do their job really well, then the question ________ male or female is not so important.
| A．if they are | B．of whether they are | C．whether they being | D．of whether to be |
__________ is responsible for the Chenzhou train collision will be punished.
| A．Whatever | B．No matter what | C． Whoever | D．No matter who |
When report came into London Zoo ______ a wild lion had been spotted forty-five miles south of London, they did not take it seriously. 
A. which B. where C. that D and
Only when he returned ___________ that the war had ended and the army had come back.
| A．we tell | B．we told | C．did we tell | D．were we told |
Nowadays more young people have suffered from diabetes __________ it is generally realized.
| A．than | B．that | C．which | D．what |
The man didn’t know _________ the thief broke into the house and stole all his valuable things
| A．it was when that | B．when it was that | C．that it was when | D．was it when that |