| A．couldn't see | B．shouldn't have seen |
| C．mustn't have seen | D．can't have seen |
The disappointed father felt no way to live, ______ at the _____ son angrily.
| A．staring; disappointing | B．having stared; disappointing |
| C．stared; disappointed | D．having stared; disappointed |
After he became conscious, he remembered ______ and_____ on the head with a rod.
| A．to attack; hit | B．to be attacked; to be hit |
| C．attacking; hitting | D．having been attacked; hit |
______, we had to put off the tennis match.
| A．It being rainy | B．There being raining | C．Having been raining | D．Being rainy |
_______ 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 |