The twins are so much__________that it is difficult to tell one from the other.

It is _____ that the middle-aged lady will pass the driving test.

21st century school edition is ____a newspaper .It helps us to improve our English a lot .

This kind of paper was as soft and light as silk but ______ expensive.

—Is the parking space ________ for all the cars in the community?—I’m afraid not, only about half.