来自吕长平的问题
-_haveyoueverbeentotheGreatWall?-Onlyonce.-__haveyoueverbeentotheGreatWall?-Onlyonce.A.HowoftenB.HowsoonC.HowlongD.Howmanytimes
-_haveyoueverbeentotheGreatWall?-Onlyonce.
-__haveyoueverbeentotheGreatWall?
-Onlyonce.
A.Howoften
B.Howsoon
C.Howlong
D.Howmanytimes
