Many countries are now setting up national parksanimals and plants can be protected.

Oh,dear! —- ______ —- I’ve found I left my English book at home.

I have _________ haircut _________ you.

Knowledgeable as he is, the expert was unwilling to offer advice to ______ he thought was not qualified.

To achieve a bright future, we should study hard keep in good health.—I agree with you.