情景交际。(把正确答案的序号写在横线上。)
Bai Ling: I have a monkey.
Wu Yifan: ____May I have a look?
Bai Ling: ____Here you are.
Wu Yifan: ____Oh, it is nice.____
Bai Ling: Thanks.
A: Thank you. B: Sure. C: I like it. D: Really?
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( )
—Why don't you get a watch for your friend as a gift?
—But it's too expensive for me _______!