Beneath our feet_____ that our lives depend on for food and clothing.

_________ that Tom got inside the room to see what was going on.

It is the third time that he ____ abroad on business this year.

So diffcult____it to fit in at school that she decided to drop out.

 —Is there anyone in the classroom?—No, not only the students but also the teacher　　　　to watch the opening ceremony of the Asian Beach Games.