Would you mind answering some questions on shopping habits— ________．

The new policy allows a couple to have a second birth _____either is an only child

The New Year’s costume ball(化妆舞会) is coming. What will you ________

Jane is one of the students in the class ______ have ever been to China.

equired that the students______ mobile phones intheir school, so seldom ______ them using one