My sister _______ ice cream for dessert. [ ]
A. likes
B. like
C. to like
D. is like
答案:A
- May I go to the movies with you?
- I’m afraid not you have a ticket, because I have only one.
A. if B. unless C. though
在重复抽样条件下,推断总体成数的必要抽样单位数目的公式为()