根据对话内容，从对话后的选项中选出最佳选项。选项中有两项为多余选项。
Sally and Li Ming are talking about making the delicious chicken.
L：The chicken tastes great.
S：____
L：Could you tell me how to cook it? I want
to have a try.
S：Of course. ____
L：____
S：Next， fill the chicken with many herbs， and put the chicken into the oven (烤炉).
L：And then?
S：____
L：That's a long time.
S：Yeah. Finally when the chicken is ready， put it on the table and then cut it into slices.
L：Thanks for your recipe.
S：____
中，若
，则
的值为
，则
”的逆否命题是
