A:﹣ 33 , 33
B:(﹣∞,﹣ 33 ∪ 33 ,+∞)
C:﹣ 3 , 3
D:(﹣∞,﹣ 3 ∪ 3 ,+∞)
昨天是奶奶的生日,以An interesting birthday party为题…提示词:1. birthday , yesterday , morning2. go, the shop, buy , presents,3. go , see, presents , have a good time .4. go home until , nine o’clock , evening.An interesting birthday party
扩句。
①他们经过黄河。
②他要写一首诗。