30. _______ 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 |
相关试题
In the history of Chinese revolution, Taierzhuang Battle was a ________ battle in which both sides suffered heavy losses.
| A．strong | B．fierce | C．hot | D．peaceful |
________ some teenagers don’t realize is ________ difficult life can be after they get
addicted to drugs.
| A．That, how | B．That, what |
C．Wh at, what a |
D．What, how |
Please correct the mistakes ________.
| A．if there are | B．there are mistakes |
| C．if any | D．if any mistakes |
The ________ look on his face sug
gested he ________ that.
| A．surprising, hadn’t expected | B．surprising, should expect |
| C．surprised, wouldn’t have expected | D．surprised, hadn’t expected |
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