样品 $\underset{①}{\overset{加水}{\to }}$ 溶液 $\underset{②}{\overset{试剂A}{\to }}$ 浊液 $\underset{③}{\overset{K_{2}C{O}_3}{\to }}$ 滤液 $\underset{④}{\overset{盐酸}{\to }}$ 溶液

回答下列问题：

⑴How are you? ____                                          A. I'm going by plane.

⑵Which season do you like best?____              B. I often go hiking.

⑶How are you going to Kunming?____            C. You're welcome.

⑷What do you do on the weekend?____          D. I like winter best.

⑸Whose skirt is this?____                                  E. Fine.

⑹Did you watch TV last night?____                   F. Twenty yuan.

⑺Thank you!____                                               G. Yes, I did.

⑻How much are the shorts?____                      H. It's Sarah's.

⑼What is he like?____                                       I. Sixteen.

⑽How many erasers do you have?____            J. He is old and fat.