they have never been to the great wall对never提问 ______ ______
they have never been to the great wall对never提问 ______ ______
have never been to the great wall对never提问 ______ ________ __
I have never been to the Great Wall.对不对
The Greens ______ (have) been to the Great Wall twice.
they have been to the great wall.划to the great wall提问
you have never been to the Great Wall since you came to chin
Jane has never been to the Great Wall,____?
- John,you have never been to the great wall since you came
have you___ been to the great wall?A just B ever C never D s
Have you __ been to the Great Wall?a.just b.ever c.never d.s
对划线部分进行提问.We have been to the Great Wall three times.中的three
I have been to the Great Wall twice(对twice进行提问)