A：Na2CO3 NaHCO3 HCl
B：NaCl AgNO3 HNO3
C：Ca（OH）2 BaCl2 H2SO4
D：NaNO3 KCl NaOH
分式方程5x+3=1的解是____ ．
I can see three _______.
A. You're welcome.
B. What shape would you like?
C. I'd like some cherries, too.
D. What kind of pudding would you like?
E. Yes. I want to buy a pudding.
A: Can I help you?
B:____
A:____
B: I'd like a chocolate pudding.
B: I'd like a heart-shaped pudding.
A: Anything else?
B:____How much are they?
A: 70 yuan.
B: Here is the money.
A: Thank you.
