根据提示和句意完成下列句子。
1.I never feel ________ (无聊的) or unhappy when he is with me.
2.My favourite s________ are Science and Chinese.
3.Mr Wu ________ (邀请) me to join in their trip yesterday.
4.Peter fell off the ladder yesterday. L________, he didn't hurt himself.
5.If someone shows bad manners to others. He is i_________.