_____ from other continents for millions of year, Australia has many plants and animals not found in any other country in the world.
| A．Being separated | B．Having been separated |
| C．Having separated | D．To be separated |
相关试题
No matter how low you consider yourself, there is always someone looking up to you ___
they were that high.
| A．to wish | B．to have wished | C．wishing | D．having wished |
________ a child begins school, he enters a world of fierce competition where success and failure are clearly defined and measured.
| A．Before | B．Until | C．Whenever | D．The moment |
—What about the package of food?
—You’d better ________ it at the service counter before entering the bookstore.
| A．allocate | B．purchase | C．expose | D．deposit |
—The Libya issue calls for talks.
—Q
uite right. I would rather the UN ________ something immediately.
| A．would do | B．does | C．did | D．will do |
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