用方框内所给词或短语的适当形式完成下面短文.

hour ，long，careful ，girl，reply ，be

My friend，Robert，has a twin sister named Amanda.Though they get along well，there

（1） 　 　some things about Amanda and her friends that puzzle （困扰）Robert.He can't understand how girls can talk for so（2）    　.For example，sometimes when he leaves home to play football，Amanda and her friend，Sharon，are sitting on the sofa，talking.When he comes back two and a half（3） 　 　later，they're still staying in the same place，continuing the same conversation on the same topic.One day Robert was so curious（好奇的） that he asked Amanda what they talked about，but she （4） 　 　， "We're best friends.We talk about almost everything- film stars，pop songs，recipes，everything!"

Boys and girls have different attitudes（态度） towards friendship.Friendships between girls are usually based on shared feelings and support （支持），but friendships between boys are based on shared activities or interests.A boy might be（5） 　 　 about sharing his feelings with his close friends.A（6） 　 　 closest friend，however，might be eager（急切的） to tell her about something that has happened in her life.