单项选择题

I really don't know ______.

A．to skate
B．how to skate
C．to skate how
D．how skate
<上一题 目录 下一题>
热门 试题

单项选择题
The natural forms of energy are the sun, the wind, the sea ______ heat from the center of the earth.
A．as well as
B．as well
C．so well as
D．so well
单项选择题
The passengers and the suitcases ______ were still waiting had to be transferred to another plane.
A．which
B．that
C．who
D．whom
相关试题