If you want to be a student helper, you must be good children. A、at B、with C、for
—Where did you go on vacation? — .
Wang Ling often___________ her window_______.
—You don’t look well. What’s wrong with you, Wang Jing? — Last night I did my homework and didn’t go to bed_______ 11 o’ clock.
—How do you spend your weekends? — If I __________ free, I ___________ to the cinema with my good friends.
Does Jim want ___________ the first one to get to the top of the mountain?