根据句意和提示写出单词，完成句子。
（1）We should brush our____  (牙齿) after each meal.
（2）On his mother's____ (四十) birthday, he gave her a card and some flowers.
（3）Does your father like ____  (看) newspapers?
（4）You may____ (借) the book for two weeks.
（5）Now mankind is exploring those ____  (未知的)outer space in many ways.

如图在三棱锥A-BCD中,E､F是棱AD上互异的两点,G､H是棱BC上互异的两点,由图可知

①AB与CD互为异面直线;②FH分别与DC､DB互为异面直线;
③EG与FH互为异面直线;④EG与AB互为异面直线.
其中叙述正确的是 (    )

小明说:“遇到正义行为，我们要支持；遇到非正义行为，我们要勇敢地冲上去。”你赞成这种观点吗？请简要说出理由。