_____ 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 |
I shall always ____ your friendship greatly for friendship is more important than money.
| A．value | B．pay high respect | C．respect | D．store |
The first textbooks written for teaching English as a foreign language ____ in the 16th century.
| A．came about | B．came out | C．came along | D．came up |
Readers can __quite well without knowing the exact meaning of each word.
| A．get along | B．get over | C．get in | D．get through |
You’d better choose someone______ you think ____ kind and friendly to help you.
| A．whom; to be | B．who; is | C．that; is | D．which; to be |
Swimmers must be very strong in order to build up speed because of the high resistance of the water. Runners, ____, must struggle against the heavy resistance of the air and ground.
| A．generally | B．similarly | C．naturally | D．probably |