单项选择题

The period ______ dance classes increases gradually from two or three hours a day to five or six.

A．referred to
B．kept to
C．attached to
D．given to
<上一题 目录 下一题>
热门 试题

单项选择题
She promised her parents to write ______ while she was away.
A．the other day
B．each other day
C．every other day
D．any other day
单项选择题
The ______ of marriage is still popular despite the high divorce rate.
A．institution
B．debate
C．institute
D．university
相关试题