A:H+、Na+、CO32-
B:Cl-、Ba2+、SO42-
C:H+、OH-、SO42-
D:H+、Ag+、NO3-
Teachers' Day in China is 10th September while South Korea's Teachers' Day is May.
too, lost, red, first, English, eraser, find, number, must, last
Hi, I'm Jenny Brown. Jenny is my ____ name. Brown is my ____ name. I'm an ____ girl. This morning I ____ my pencil box in the library. I ____ find it. My pencil box is ____. In it, you can see an ____ and a set of keys. If you ____ my pencil box, please call me. My telephone ____ is 765-0652. You can e-mail me, ____. My e-mail address(地址) is jenny 1256@ 126.com. Thanks!