问题
____ hands and knees Helen Thayer got the tent up.
A:In
B:At
C:With
D:On
B:At
C:With
D:On
正确答案是：
同类题型
This is quite a new phrase.–Right. It has already ____the language.
Can you see __________ bright light in the sky?–Yes, I think it’s __________ UFO.
Why are you so _______,Amy?—I thought I lost my purse, but I didn’t. I found it in my study!
Sandy does not have much time to play tennis. She _____ plays tennis.