问题补充：
---It’s a wonderful party.—It’s very nice of you to come..
A. Please do make yourself at home
B. Please enjoy yourself
C. Help yourself
D. Have a good time
答案：
(答案→)A. Please do make yourself at home
B. Please enjoy yourself
C. Help yourself
D. Have a good time
解析：从答句可知, 你来参加聚会真是太好了,please do make yourself at home中的 make前的 do用来加强语气.
