问题
选择题
The children do not know how to _______ themselves decently at the party.
A．act
B．perform
C．behave
D．advance
答案
答案：C
考查动词辨析：A. act行动，B. perform表演，表现，C. behave行为举止D. advance进步，behave oneself举止得体，句意是：孩子们不知道怎么在聚会上行为举止有礼貌。选C。