As more and more restaurants join “clear your plate” campaign, people are encouraged _______ food any more.

The beach is not as ________ as it used to be. Let’s collect the rubbish.

You shouldn’t argue with__,you should go to__house to say sorry.

Two bottles of apple juice, please. — Only one bottle is left. Would you like to have ___________, sir?

Never _______ protecting our earth. It is the only nice planet for us to live on.