---______ the farmers discovered the entrance to the secret cave in the valley?
--- Totally by chance.
| A．When was it that | B．How was it that | C．How it was that | D．When it was that |
Was it in Disneyland, ________ many cartoon characters can be seen, ________ the film was set?
| A．that; where | B．that; when | C．in which; where | D．where; that |
It is his dishonesty _________ leads to his failure in his struggling for the job.
| A．what | B．which | C．who | D．that |
----- It was at that moment_________ her appointment with the doctor.
| A．when she remembered | B．that she remembered |
| C．did she remember | D．and she remembered |
Is it on September 1st _____ students come back to school every year ?
| A．when | B．that | C．which | D．who |
It was ten years ago__________he was put into prison because he fought against the government.
| A．that | B．since | C．when | D．before |
. It was in this house ________ he heard some strange sounds.
| A．that | B．where | C．which | D．who |
Mike didn’t understand _______ made his wife so upset this morning.
| A．what was it that | B．what it was that | C．how that was | D．why it was that |
— Why didn’t they complete the task in time?
— Because it was not until late afternoon _____ they began to solve the major problem．
| A．when | B．that | C．before | D．which |
It was because of the bad weather ______ the sports meet was put off.
| A．when | B．which | C．where | D．that |