A: How was your day off, Tina?
B: Oh, it was awful.
A: Really?  1
B: Well, we wanted to go camping, but the weather was terrible.  2
A: Oh, that's too bad. Then what did you do? Did you watch TV at home?
B: No.  3   . It was boring.
A: Sounds terrible, Tina.
B:   4
A: I think I had great fun. I went to the museum and met a famous actor.  5      And I got his autograph.
B: That sounds wonderful.

下图引自王祯《农书·农器图谱集之十九》。与右图相关的历史解释表述正确的是（  ）

辛亥革命时期，一些刊物大声呼吁“教育救国”，宣称“强国强种，惟教育者之功。”五四运动前后，“教育先行”、“教育救国”的观点成为时尚。这主要反映了（    ）

四边形ABCD的对角线相交于点O，能判定四边形是正方形的条件是（    ）