.They have their reasons for keeping their marriage___ secret for ___ moment.
| A．the; a | B．the; the | C．a; the | D．a; a |
_______ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.
| A．Being separated | B．Having separated |
| C．Having been separated | D．To be separated |
How ______ you did so much work with such a short time?
| A．did it come about | B．did it come about that |
| C．came about that | D．was it that came about |
____ back home after the party.
| A．It was not until midnight did he go |
| B．It was until midnight that he didn’t go |
| C．Not until midnight did he go |
| D．It was midnight that he didn’t go |
Two cars crashed in each other heavily in front of my car. I escaped death ______ a matter of inches.
| A．as | B．at | C．to | D．by |
That was really a great evening. It’s years ______ I enjoyed myself so much.
| A．when | B．that | C．before | D．since |