Most children with healthy appetites are ready to eat almost anything that is offered them

and a child rarely dislikes food【31】it is badly cooked. The way a meal is cooked and served is most important and an attractively served meal will often improve a child's appetite. Never ask a child【32】he likes or dislikes a food and never discuss likes and dislikes in front of him or allow【33】else to do so. If the father says he hates fat meat or the mother refuses vegetables, in the child's hearing he is【34】to copy this procedure. Take it【35】granted that he likes everything add he probably will. Nothing healthful should be omitted from the meal because of a supposed dislike. At meal times it is a good【36】to give a child a small portion and let him come back for a second helping rather than give him as【37】as he is likely to eat all at once. Do not talk too much to the child【38】meal times, but let him get on with his food; and do not【39】him to leave the table immediately after a meal or he will soon learn to swallow his food so he can hurry back to his toys. Under【40】circumstances must a child be coaxed (哄骗) or forced to eat.

(31)

A．if

B．until

C．that

D．unless