－Is that Mary－No, it_______be her. She has gone to Tokyo.

Ann, here is _____big tree . What can you see behind _____tree—Oh, _____elephant is standing behind it.

about__________concert— It was too boring, you know,________concert for me.

One thing that most organically grown food products seem to have in common is that they cost more than ________ grown foods

He made up his mind to devote his life pollution happily.