__________ it is true that a student`s most important goal is to do well in his or her studies,it doesn`t need to be the only goal.
20. When a stick is partly in a glass of water, it looks ________ it were broken.
19. Have a little chicken, ______?
17. Besides our group ,we need 20 extra workers to get the work finished in time.
16. She became very popular after she won the Oscar ________ last year.
15. The hiding man made a hole in the wall ______ he could observe the outside.