2 . You ought to be ashamed of your foolish________ (behave) at the party. (所给词的适当形式填空)

3 . I think all of us should mind our __________(behave)when we dine out. (所给词的适当形式填空)

4 . The young couple didn’t feel shameless about their children’s ______ (behave). (所给词的适当形式填空)

5 . His _________ (behave) at the party was very rude and disrespectful. (所给词的适当形式填空)

6 . Biologists are working together to study the _____ (behave) of this family of birds. (所给词的适当形式填空)

7 . Perhaps she knows she’s in ________ wrong and wants to ________ (apology), or maybe she has a simple ________ (explain) for her ________ (behave). (所给词的适当形式填空)

8 . I recommend that you talk to your parents about your _________ (behave). (所给词的适当形式填空)

9 . I’m sorry for my son’s bad________(behave) at the party yesterday. (所给词的适当形式填空)

10 . When teaching at home or at school, make sure that good ________ (behave) is rewarded. (所给词的适当形式填空)