It is_____the pupils do in their spare time_____ really______ them to take their place in society as citizens when they grow up.
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.
14. “ You have to trust in god, _______ friends and bank on education,” the teacher said in an honest voice.
13. Every time the father comes into his room, the boy pretends ______ earnestly.