_____ 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 |
-What's the matter?
-The cook _____five minutes ago, and there are fifty dinners still to cook.( )
| A．left | B．leaves |
| C．has left | D．was leaving |
Most of us_________more than one thousand English words before we came to this school. ( )
| A．would learn | B．will learn |
| C．have learned | D．had learned |
Nankai University,_______ in 1919, has a history of more than 94 years. ( )
| A．found | B．founding |
| C．founded | D．to be founded |
Our English teacher spoke very clearly ________we could hear every word. ( )
| A．so that | B．now that | C．as soon as | D．in case |
-Say, let's have a get-together sometime this week. ( )
-________Shall we make it Friday evening?
| A．I don't think so. | B．I can't agree more |
| C．You can't be serious! | D．I don't agree with you. |