—How long is it _____ we last met? —Abou
题型:选择题
问题:
—How long is it _____ we last met?
—About five years. You haven't changed much.[ ]
A. before
B. since
C. when
D. that
—How long is it _____ we last met?
—About five years. You haven't changed much.[ ]
A. before
B. since
C. when
D. that