问题补充:
—The ice cream is really delicious. Can I have some more?
—.
A. Behave yourself
B. Please yourself
C. Do it yourself
D. Be my guest
答案:
A. Behave yourself
B. Please yourself
C. Do it yourself
(答案→)D. Be my guest
解析:D句意:“冰激凌确实很可口,我能再吃一些吗?”“请便。”be my guest“请便(用于礼貌地同意别人的请求)”,符合语境。behave yourself“检点,举止规矩有礼”;do it yourself“自己动手”。