She's _________ seen such a big panda before, has she?

[　　]

She's _________ seen such a big panda before, has she?

[　　]

Have you ________thrown any litter on the ground?

A. already

B. ever

C. never

D. yet

"Have you ____ been to Beijing?""No,never．"

　　A．never　　B．ever　　C．already D．yet

She has       been to Shanghai, has she?

A.never       B.ever         C. already      D. yet