筛下补加水的作用是什么？如何调节好？

选择适当的答语完成下面的对话
小题1:How do you do ?
小题2:Could you come to my party?
小题3:How long does it take you to make dinner every day?
小题4:How many bananas do we need?
小题5:How do you get to school ?
小题6:Where were you born?
小题7:What ＇s  the time by your watch ?
小题8:What ＇s  the matter with you ?
小题9:Were there any sheep in the field ?
小题10:When did you visit you her house?

Twenty minutes.    B.I was born in Shanghai It’s six o’clock.     D.Yes,there were . E.Three .               F.Yes,I’d love to . G.I have a toothache .     H.Last Sunday. I.How do you do?       J.By bike.