一.选择题(共15小题,每题1分)
26.It has been about half a term ______ Sandy went into junior high school.( )
A.thoughB.whenC.ifD.since
27.The Greens ________live in the south of Asia.They don't want to move to the north because they ________ the cold weather.( )
A.used to; don't use to
B.used to; aren't used to
C.are used to; didn't use to
D.are used to; aren't used to