Every necessary means____ to protect milu deer which____ very valuable to us. As a result, the number of milu deer is increasing. [ ]

Mr. Green offered ________ valuable advice that _______ people disagreed with him.

The young teacher who has a ____face can make his classes ____and interesting.

Be careful that a good name of a product doesn’t_______ mean good quality of it.

I just don’t understand ________ that prevents so many children at school from being as happy as one might expect.