1. 用方框中所给单词的适当形式填空

easy,    real,   actual,   effect,   use

1. （1） that student needs to study more to pass the exam.
3. （2） Are you happy ,o are you just smiling?
5. （3） We can't give up so.
7. （4） The medicine is quite .
9. （5） We must do something to help him.