例：It is generally considered unwise to give a child he or she wants.
答案是B。
21.It’s good feeling for people to admire the shanghai world expo that gives them Pliasure.
A.不填，a B.a,不填 C.the ,a D.nothing
22.When you introduce me to Mr,johnson.corld you please say for me ?
A.everything B.anything C.something D.nothing
