____ we admit that there are still someproblems about the system of modern education, we don’t mean that it is of nouse.

are you — I’m fine.

People have realized how important the environment is, but still trees ____in the world every year.— We must do something to stop it.

He felt rather________that she should drive the car at such a________speed

Your suggestion on how to improve English writing ability is too general. Could you make it more _______?